G0079
ἀδελφή
sister
ἀδελφή, -ῆς, ἡ (ἀδελφός), [in LXX for אָהוֹת ;] a sister: Mat.19:29, al.; metaphorically (MM, VGT, see word), of a member of the Christian community: Rom.16:1, 1Co.7:15 Jas.21:15, al. (AS)
Full Thayer's lexicon entry
ἀδελφή — adelphḗ
ἀδελφή, (ῆς, ἡ (see ἀδελφός) (from Aeschylus down), sister;
1. a full, own sister (i. e. by birth): Mat 19:29; Luk 10:39; Joh 11:1; Joh 11:3; Joh 11:5; Joh 19:25; Rom 16:15, etc.; respecting the sisters of Christ, mentioned in Mat 13:56; Mar 6:3, see ἀδελφός, 1.
2. one connected by the tie of the Christian religion: 1Co 7:15; 1Co 9:5; Phm 1:2 L T Tr WH; Jas 2:15; with a subjective genitive, a Christian woman especially dear to one, Rom 16:1.
26 occurrences
Matthew (3), Mark (5), Luke (3), John (6), Acts (1), Romans (2), I Corinthians (2), I Timothy (1), Philemon (1), James (1), II John (1)