Sense

1. sister
2. some other female relation, such as wife or cousin

Examples

• καὶ ταῦτ’ ἀφ’ ὑμῶν, ὧ ξένοι, βουλήσομαι καὶ ταῖνδ’ ἀδελφαῖν καὶ πατρὸσ κυρεῖν ἐμοί. (Sophocles, Oedipus at Colonus, episode 1:4)

Similar forms

• ἀδελφὸν (636)
• ἀδελφὸς (509)
• ἀδελφῶν (429)
• ἀδελφοῦ (351)
• ἀδελφοὶ (283)
• ἀδελφοὺς (266)
• ἀδελφὴν (240)
• ἀδελφῷ (237)
• ἀδελφῆς (233)
• ἀδελφοῖς (214)
• ἀδελφόν (176)
• ἀδελφός (167)
• ἀδελφοί (164)
• ἀδελφὴ (105)
• ἀδελφούς (83)
• ἀδελφῇ (59)
• ἀδελφήν (49)
• ἀδελφιδοῦς (47)
• ἀδελφή (47)
• ἀδελφέ (42)
• ἀδελφὰς (39)
• ἀδελφεὸν (37)
• ἀδελφιδοῦν (35)
• ἀδελφὰ (31)
• ἀδελφαῖς (24)
• ἀδελφαὶ (20)
• ἀδελφιδός (18)
• ἀδελφεὸς (18)
• ἀδελφεός (16)
• ἁδελφὸς (16)
• ἀδελφεοῦ (15)
• ἀδελφιδοῦ (14)
• ἀδελφεόν (14)
• ἀδελφά (13)
• ἀδελφιδῷ (13)
• ἀδελφάς (12)
• ἀδελφὼ (12)
• ἀδελφιδῆν (12)
• ἀδελφεῷ (11)
• ἀδελφιδῶν (10)
• ἀδελφαί (9)
• ἀδελφεὴν (7)
• ἀδελφιδῆς (7)
• ἀδελφεῶν (6)
• ἀδελφώ (5)
• ἀδελφεοὺς (5)
• ἀδελφεοί (4)
• ἀδελφειοῦ (4)
• ἀδελφεοῖσι (4)
• ἀδελφιδέ (4)
• ἀδελφότητα (4)
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• ἀδελφεήν (3)
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• ἀδελφότης (2)
• ἀδελφιδόν (2)
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• ἀδελφιδοῖ (2)
• [ἀδελφ]όν (1)
• ἀδελφότητι (1)
• ἀδελέσχει (1)
• ἀδελφάν (1)
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• ἀδελφόπαις (1)
• ἀδέλφ (1)
• ἀδελφεὰς (1)
• ἀδελφεούς (1)
• ἀδελφιδὰς (1)
• ἀδελ‐ (1)
• ἀδελφαῖν (1)
• ἀδελφεαὶ (1)
• ἀδελφειοὺς (1)
• ἀδελφίξιας (1)
• ἀδελφιδέου (1)
• ἀδελφικῇ (1)
• ἀδελφειοῖς (1)
• ἀδελφεώ (1)
• [ἀ]δελφὴ[ν (1)
• ἀδέλφιδέ (1)

Source: Ancient Greek entries from Wiktionary