sib

sib  (sb)

n.

1.

a. A blood relation; a relative.

b. A person's relatives considered as a group; kinfolk.

2. A brother or sister; a sibling.

3. Anthropology A kinship group consisting of two or more lineages considered as being related, as by common descent from a mythic ancestor.

adj.

Related by blood; kindred.

---

[Middle English sibbe, from Old English sibb; see s(w)e- in Indo-European roots.]

---

sib [sɪb]

n

1. (Life Sciences & Allied Applications / Genetics) a blood relative

2. a brother or sister; sibling

3. (Social Science / Anthropology & Ethnology) kinsmen collectively; kindred

4. (Social Science / Anthropology & Ethnology) any social unit that is bonded by kinship through one line of descent only

[Old English sibb; related to Old Norse sifjar relatives, Old High German sippa kinship, Latin suus one's own; see gossip]

---

SIB (in Britain)

abbreviation for

(Economics, Accounting & Finance / Banking & Finance) (the former) Securities and Investments Board

Thesaurus

Noun	1.	sib - a person's brother or sister         sibling family unit, family - primary social group; parents and children; "he wanted to have a good job before starting a family" half blood - one of siblings who have only one parent in common relative, relation - a person related by blood or marriage; "police are searching for relatives of the deceased"; "he has distant relations back in New Jersey" quad, quadruplet - one of four children born at the same time from the same pregnancy quin, quint, quintuplet - one of five children born at the same time from the same pregnancy triplet - one of three offspring born at the same time from the same pregnancy twin - either of two offspring born at the same time from the same pregnancy
	2.	sib - one related by blood or origin; especially on sharing an ancestor with another blood relation, blood relative, cognate relative, relation - a person related by blood or marriage; "police are searching for relatives of the deceased"; "he has distant relations back in New Jersey"