Strong's numbers

σημεῖον G4592

sēmeîon

say-mi'-on

neuter of a presumed derivative of the base of σημαίνω; an indication, especially ceremonially or supernaturally:--miracle, sign, token, wonder.

σημεῖον, -ου, τό [in LXX chiefly for אוֹת ;]

a sign, mark, token;

(a) of that which distinguishes a person or thing from others: Mt 26:48, Lk 2:12, II Th 3:17 (cf. Deiss., LAE, 1532); seq. gen. epexeg., Ro 4:11; c. gen. obj., Mt 24:8, 30, II Co 12:12; c. gen. subj., Mt 16:3;

(b) a sign of warning or admonition: Mt 12:39 16:4, Lk 2:34 11:29, 30, I Co 14:22;

(d) of miracles and wonders (MM, xxii), regarded as signs of a divine authority: Mt 12:38, 39 16:1, 4, Mk 8:11, 12 Lk 11:16, 29 23:8, Jo 2:11, 18, 23 4:54 6:30 10:41 12:18, Ac 4:16, 22; pl., Mk 16:[17, 20], Jo 2:11, 23 3:2 6:2, 14, 26 7:31 9:16 11:47 12:37 20:30, Ac 8:6, I Co 1:22 (Lft., Notes, 162); the same ascribed to false teachers and demons: Mt 24:24, Mk 13:22, II Th 2:9, Re 13:13, 14 16:14 19:20; σ. καὶ τέρατα (τ. καὶ σ.; cf. Tr., Syn., § xci), Mt 24:24, Mk 13:22, Jo 4:48, Ac 2:19, 43 4:30 5:12 6:8 7:36 14:3 15:12, Ro 15:19, II Th 2:9; id. seq. καὶ δυνάμεις, II Co 12:12, He 2:4; σ. καὶ δυνάμεις, Ac 8:13; δ. καὶ τ. καὶ σ., Ac 2:22; σ. διδόναι, Mt 24:24, Mk 13:22.†

From G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), in the public domain.

Shown in the King James Version (KJV), whichever translation you read in — it is the text these numbers are tagged against.

John 20:30
And many other signs truly did Jesus in the presence of his disciples, which are not written in this book:
Acts 2:19
And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke:
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:
Acts 2:43
And fear came upon every soul: and many wonders and signs were done by the apostles.
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.
Acts 4:22
For the man was above forty years old, on whom this miracle of healing was shewed.
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.
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.
Acts 6:8
And Stephen, full of faith and power, did great wonders and miracles among the people.
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.