Greek: σημειον [sêmeion] (Noun neuter). A sign.

σημειον [sêmeion] appears 77 times in the NT:

(1) Matthew 12: 38
Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee. - σημειον [sêmeion] Accus. sing.

(2, 3, 4) Matthew 12: 39
But he answered and said unto them, An evil and adulterous generation seeketh after a sign¹; and there shall no sign² be given to it, but the sign³ of the prophet Jonas: - ¹σημειον [sêmeion] Accus. sing. / ²σημειον [sêmeion] Nom. sing. / ³το σημειον [to sêmeion] Nom. sing.

(5) Matthew 16: 1
The Pharisees also with the Sadducees came, and tempting desired him that he would shew them a sign from heaven. - σημειον [sêmeion] Accus. sing.

(6) Matthew 16: 3
And in the morning, [It will be] foul weather to day: for the sky is red and lowring. O [ye] hypocrites, ye can discern the face of the sky; but can ye not [discern] the signs of the times? - τα σημεια [ta sêmeia] Accus. pl.

(7, 8, 9) Matthew 16: 4
A wicked and adulterous generation seeketh after a sign¹; and there shall no sign² be given unto it, but the sign³ of the prophet Jonas. And he left them, and departed. - ¹σημειον [sêmeion] Accus. sing. / ²σημειον [sêmeion] Nom. sing. / ³το σημειον [to sêmeion] Nom. sing.

(10) Matthew 24: 3
And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what [shall be] the sign of thy coming, and of the end of the world? - το σημειον [to sêmeion] Nom. sing.

(11) Matthew 24: 24
For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if [it were] possible, they shall deceive the very elect. - σημεια [sêmeia] Accus. pl.

(12) Matthew 24: 30
And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. - το σημειον [to sêmeion] Nom. sing.

(13) Matthew 26: 48
Now he that betrayed him gave them a sign, saying, Whomsoever I shall kiss, that same is he: hold him fast. - σημειον [sêmeion] Accus. sing.

(14) Mark 8: 11
And the Pharisees came forth, and began to question with him, seeking of him a sign from heaven, tempting him. - σημειον [sêmeion] Accus. sing.

(15, 16) Mark 8: 12
And he sighed deeply in his spirit, and saith, Why doth this generation seek after a sign¹? verily I say unto you, There shall no sign¹ be given unto this generation. - ¹σημειον [sêmeion] Accus. sing.

(17) Mark 13: 4
Tell us, when shall these things be? and what [shall be] the sign when all these things shall be fulfilled? - το σημειον [to sêmeion] Nom. sing.

(18) Mark 13: 22
For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if [it were] possible, even the elect. - σημεια [sêmeia] Accus. pl.

(19) Mark 16: 17
And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues; - σημεια [sêmeia] Nom. pl.

(20) Mark 16: 20
And they went forth, and preached every where, the Lord working with [them], and confirming the word with signs following. Amen. - των σημειων [tôn sêmeiôn] Gen. pl. ("with signs " - δια των σημειων [dia tôn sêmeiôn] Lit: "through signs").

(21) Luke 2:12
And this [shall be] a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger. - σημειον [sêmeion] Nom. sing. / Variant: το σημειον [to sêmeion].

(22) Luke 2: 34
And Simeon blessed them, and said unto Mary his mother, Behold, this [child] is set for the fall and rising again of many in Israel; and for a sign which shall be spoken against; - σημειον [sêmeion] Accus. sing. ("for a sign" - εις σημειον [eis sêmeion] Lit: "in sign").

(23) Luke 11: 16
And others, tempting [him], sought of him a sign from heaven. - σημειον [sêmeion] Accus. sing.

(24, 25, 26) Luke 11: 29
And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign¹; and there shall no sign² be given it, but the sign³ of Jonas the prophet. - ¹σημειον [sêmeion] Accus. sing. / ²σημειον [sêmeion] Nom. sing. / ³το σημειον [to sêmeion] Nom. sing.

(27) Luke 11: 30
For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation. - σημειον [sêmeion] Nom. sing.

(28) Luke 21: 7
And they asked him, saying, Master, but when shall these things be? and what sign [will there be] when these things shall come to pass? - το σημειον [to sêmeion] Nom. sing.

(29) Luke 21: 11
And great earthquakes shall be in divers places, and famines, and pestilences; and fearful sights and great signs shall there be from heaven. - σημεια [sêmeia] Nom. pl.

(30) Luke 21: 25
And there shall be signs in the sun, and in the moon, and in the stars; and upon the earth distress of nations, with perplexity; the sea and the waves roaring; - σημεια [sêmeia] Nom. pl.

(31) Luke 23: 8
And when Herod saw Jesus, he was exceeding glad: for he was desirous to see him of a long [season], because he had heard many things of him; and he hoped to have seen some miracle done by him. - σημειον [sêmeion] Accus. sing.

(32) John 2: 11
This beginning of miracles did Jesus in Cana of Galilee, and manifested forth his glory; and his disciples believed on him. - των σημειων [tôn sêmeiôn] Gen. pl.

(33) John 2: 18
Then answered the Jews and said unto him, What sign shewest thou unto us, seeing that thou doest these things? - σημειον [sêmeion] Accus. sing.

(34) John 2: 23
Now when he was in Jerusalem at the passover, in the feast [day], many believed in his name, when they saw the miracles which he did. - τα σημεια [ta sêmeia] Accus. pl.

(35) John 3: 2
The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him. - τα σημεια [ta sêmeia] Accus. pl.

36) John 4: 48
Then said Jesus unto him, Except ye see signs and wonders, ye will not believe. - σημεια [sêmeia] Accus. pl.

(37) John 4: 54
This [is] again the second miracle [that] Jesus did, when he was come out of Judaea into Galilee. - σημειον [sêmeion] Accus. sing.

(38) John 6: 2
And a great multitude followed him, because they saw his miracles which he did on them that were diseased. - τα σημεια [ta sêmeia] Acus. pl.

(39) John 6: 14
Then those men, when they had seen the miracle that Jesus did, said, This is of a truth that prophet that should come into the world. - σημειον [sêmeion] Accus. sing. / Variant: σημεια [sêmeia] Accus. pl.

(40) John 6: 26
Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled. - σημεια [sêmeia] Accus. pl.

(41) John 6: 30
They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work? - σημειον [sêmeion] Accus. sing.

(42) John 7: 31
And many of the people believed on him, and said, When Christ cometh, will he do more miracles than these which this [man] hath done? - σημεια [sêmeia] Accus. pl.

(43) John 9: 16
Therefore said some of the Pharisees, This man is not of God, because he keepeth not the sabbath day. Others said, How can a man that is a sinner do such miracles? And there was a division among them. - σημεια [sêmeia] Accus. pl.

(44) John 10: 41
And many resorted unto him, and said, John did no miracle: but all things that John spake of this man were true. - σημειον [sêmeion] Accus. sing.

(45) John 11: 47
Then gathered the chief priests and the Pharisees a council, and said, What do we? for this man doeth many miracles. - σημεια [sêmeia] Accus. pl.

(46) John 12: 18
For this cause the people also met him, for that they heard that he had done this miracle. - το σημειον [to sêmeion] Accus. sing.

(47) John 12: 37
But though he had done so many miracles before them, yet they believed not on him: - σημεια [sêmeia] Accus. pl.

(48) John 20: 30
And many other signs truly did Jesus in the presence of his disciples, which are not written in this book: - σημεια [sêmeia] Accus. pl.

(49) Acts 2: 19
And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke: - σημεια [sêmeia] Accus. pl.

(50) Acts 2: 22
Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know: - σημειοις [sêmeiois] Dat. pl.

(51) Acts 2: 43
And fear came upon every soul: and many wonders and signs were done by the apostles. - σημεια [sêmeia] Nom. pl.

(52) Acts 4: 16
Saying, What shall we do to these men? for that indeed a notable miracle hath been done by them [is] manifest to all them that dwell in Jerusalem; and we cannot deny [it]. - σημειον [sêmeion] Nom. sing.

(53) Acts 4: 22
For the man was above forty years old, on whom this miracle of healing was shewed. - το σημειον [to sêmeion] Nom. sing.

(54) Acts 4: 30
By stretching forth thine hand to heal; and that signs and wonders may be done by the name of thy holy child Jesus. - σημεια [sêmeia] Accus. pl.

(55) Acts 5: 12
And by the hands of the apostles were many signs and wonders wrought among the people; (and they were all with one accord in Solomon's porch. - σημεια [sêmeia] Nom. pl.

(56) Acts 6: 8
And Stephen, full of faith and power, did great wonders and miracles among the people. - σημεια [sêmeia] Accus. pl.

(57) Acts 7: 36
He brought them out, after that he had shewed wonders and signs in the land of Egypt, and in the Red sea, and in the wilderness forty years. - σημεια [sêmeia] Accus. pl.

(58) Acts 8: 6
And the people with one accord gave heed unto those things which Philip spake, hearing and seeing the miracles which he did. - τα σημεια [ta sêmeia] Accus. pl.

(59) Acts 8: 13
Then Simon himself believed also: and when he was baptized, he continued with Philip, and wondered, beholding the miracles and signs which were done. - σημεια [sêmeia] Accus. pl.

(60) Acts 14: 3
Long time therefore abode they speaking boldly in the Lord, which gave testimony unto the word of his grace, and granted signs and wonders to be done by their hands. - σημεια [sêmeia] Accus. pl.

(61) Acts 15: 12
Then all the multitude kept silence, and gave audience to Barnabas and Paul, declaring what miracles and wonders God had wrought among the Gentiles by them. - σημεια [sêmeia] Accus. pl.

(62) Romans 4: 11
And he received the sign of circumcision, a seal of the righteousness of the faith which [he had yet] being uncircumcised: that he might be the father of all them that believe, though they be not circumcised; that righteousness might be imputed unto them also: - σημειον [sêmeion] Accus. sing.

(63) Romans 15: 19
Through mighty signs and wonders, by the power of the Spirit of God; so that from Jerusalem, and round about unto Illyricum, I have fully preached the gospel of Christ. - σημειων [sêmeiôn] Gen. pl.

(64) 1 Corinthians 1: 22
For the Jews require a sign, and the Greeks seek after wisdom: - σημεια [sêmeia] Accus. pl. Variant: - σημειον [sêmeion] Accus. sing.

(65) 1 Corinthians 14: 22
Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying [serveth] not for them that believe not, but for them which believe. - σημειον [sêmeion] Accus. sing. ("are for a sign" - εις σημειον εισιν [eis sêmeion eisin] Lit: "in sign are").

(66, 67) 2 Corinthians 12: 12
Truly the signs¹ of an apostle were wrought among you in all patience, in signs², and wonders, and mighty deeds. - ¹τα σημεια [ta sêmeia] Nom. pl. / ²σημειοις [sêmeiois] Dat. pl.

(68) 2 Thessalonians 2: 9
[Even him], whose coming is after the working of Satan with all power and signs and lying wonders, - σημειοις [sêmeiois] Dat. pl.

(69) 2 Thessalonians 3: 17
The salutation of Paul with mine own hand, which is the token in every epistle: so I write. - σημειον [sêmeion] Nom. sing.

(70) Hebrews 2: 4
God also bearing [them] witness, both with signs and wonders, and with divers miracles, and gifts of the Holy Ghost, according to his own will? - σημειοις [sêmeiois] Dat. pl.

(71) Revelation 12: 1
And there appeared a great wonder in heaven; a woman clothed with the sun, and the moon under her feet, and upon her head a crown of twelve stars: - σημειον [sêmeion] Nom. sing.

(72) Revelation 12: 3
And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads. - σημειον [sêmeion] Nom. sing.

(73) Revelation 13: 13
And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men, - σημεια [sêmeia] Accus. pl.

(74) Revelation 13: 14
And deceiveth them that dwell on the earth by [the means of] those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live. - τα σημεια [ta sêmeia] Accus. pl. ("by the means of those miracles" - δια τα σημεια [dia ta sêmeia] Lit: "because of the signs").

(75) Revelation 15: 1
And I saw another sign in heaven, great and marvellous, seven angels having the seven last plagues; for in them is filled up the wrath of God. - σημειον [sêmeion] Accus. sing.

(76) Revelation 16: 14
For they are the spirits of devils, working miracles, [which] go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty. - σημεια [sêmeia] Accus. pl.

(77) Revelation 19: 20
And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone. - τα σημεια [ta sêmeia] Accus. pl.