Sister
Sister , noun
[Old English sister, from Icelandic systir; also suster, from Anglo-Saxon sweostor, sweoster, swuster, akin to OFries. sweester, suster, LG. suster, suster, Dutch zuster, Old Saxon & Old High German swestar, German schwester, Icelandic systir, Swedish syster, Danish soster, Gothic swistar, Lithuanian ses{not transcribed}, Russ. sestra, Pol. siostra, Latin soror, Sanskrit svasr. r298. Compare Cousin.]
1.
A female who has the same parents with another person, or who has one of them only. In the latter case, she is more definitely called a half sister. The correlative of brother.
I am the sister of one Claudio.
2.
A woman who is closely allied to, or associated with, another person, as in the sister faith, society, order, or community. — James ii. 15
3.
One of the same kind, or of the same condition; -- generally used adjectively; as, sister fruits. — Pope
Collocations (3)
Sister Block (Nautical) , a tackle block having two sheaves, one above the other.
Sister hooks , a pair of hooks fitted together, the shank of one forming a mousing for the other; -- called also match hook.
Sister , transitive verb
To be sister to; to resemble closely. [Obsolete] — Shakespeare