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sib

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sib¹

  • /sɪb/

Rhymes with -ɪb

Where it comes from

From Middle English sib, from Old English sibb (“related, akin, sib”), from Proto-Germanic *sibjaz (“related”), from Proto-Indo-European *sebʰ-, *swebʰ- (“one's own”). Cognate with West Frisian besibbe (“related”), Middle Dutch sibbe (“related”), Middle Low German sibbe (“related”), Middle High German sippe (“related”), Icelandic sifi (“related”).

adjective sibber · sibbest

  1. Having kinship or relationship; related by same-bloodedness; kindred. […] they are sibber to you than ever Miss Innes was or will be; and if like to bid me, […]
  2. Akin (to); similar (to). […] we are so much the sibber to Christ that we suffer; […]

sib²

  • /sɪb/

Rhymes with -ɪb

Where it comes from

From Middle English sib, sibbe, from Old English sibb (“relationship; gossip; friendliness, kindness; love, friendship, peace, concord, unity, tranquility; peace of mind; a relative, kinsman, kinswoman”), from Proto-West Germanic *sibbju, from Proto-Germanic *sibjō (“kinship”), from Proto-Indo-European *sebʰ-, *swebʰ- (“one's own”).

Cognate with West Frisian sibbe (“relative, family member”), Dutch sibbe (“sib”), German Sippe (“tribe, clan”), Icelandic sifjar (“in-laws”), Latin suus (“one's own”).

noun sibs

  1. Kindred; kin; kinsmen; a body of persons related by blood in any degree.
  2. A kinsman; a blood relation; a relative, near or remote; one closely allied to another; an intimate companion. But she got up to go, and Domenico obeyed me too in mock meekness, making himself sib and coeval to Hortense, submissive to frowning elder brother, something incestuous in it.
  3. A sibling, brother or sister (irrespective of gender)
  4. Any group of animals or plants sharing a corresponding genetic relation
  5. A group of individuals unilaterally descended from a single (real or postulated) common ancestor

sib³

  • /sɪb/

Rhymes with -ɪb

Where it comes from

From Middle English *sibben, from Old English sibbian (“to make peace; rejoice”), from Proto-Germanic *sibjōną (“to reconcile”), Proto-Indo-European *sebʰ-, *swebʰ- (“one's own”). Cognate with German sippen (“to be in relationship with, become related to”).

verb sibs · sibbing · sibbed

  1. transitive To bring into relation; establish a relationship between; make friendly; reconcile.

sib⁴

  • /sɪb/

Rhymes with -ɪb

Where it comes from

From the abbreviation SIB, or self-injurious behavior, a behavior found in autism.

verb sibs · sibbing · sibbed

  1. intransitive To engage in repetitive behaviors such as eye-poking, skin-picking, hand-biting, or head-banging.

SIB⁵

proper noun

  1. UK, abbreviation, initialism Initialism of Special Investigation Branch

noun SIBs

  1. abbreviation, countable, initialism, uncountable Initialism of self-injurious behavior A treatment consisting of differential reinforcement of compliance and a quiet-hands procedure (repeatedly guiding her to place her hands in her lap for 30 s) contingent on SIB was shown to be effective in reducing Candy’s SIB to low levels during vocational training sessions.
  2. abbreviation, countable, uncountable Abbreviation of sodium-ion battery

    Similar: NIB

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MLA

"sib." Wiktionary, via Micwyn, micwyn.com/word/sib. Accessed 6 Nov. 2026.

APA

sib. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/sib

Chicago

"sib." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/sib.

BibTeX
@misc{sib_2026,
  title = {sib},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/sib},
  urldate = {2026-11-06}
}