Sib
adj, name, noun, verb ·Moderate ·High school level
Definitions
- 1 Kindred; kin; kinsmen; a body of persons related by blood in any degree.
- 2 Initialism of self-injurious behavior. abbreviation, alt-of, countable, initialism, uncountable
"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."
- 3 one related by blood or origin; especially on sharing an ancestor with another wordnet
- 4 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."
- 5 Abbreviation of sodium-ion battery. abbreviation, alt-of, countable, uncountable
Show 4 more definitions
- 6 a person's brother or sister wordnet
- 7 A sibling, brother or sister (irrespective of gender)
- 8 Any group of animals or plants sharing a corresponding genetic relation
- 9 A group of individuals unilaterally descended from a single (real or postulated) common ancestor
- 1 To bring into relation; establish a relationship between; make friendly; reconcile. transitive
- 2 To engage in repetitive behaviors such as eye-poking, skin-picking, hand-biting, or head-banging. intransitive
- 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; […]"
- 1 Initialism of Special Investigation Branch. UK, abbreviation, alt-of, initialism
Example
More examples"[…] they are sibber to you than ever Miss Innes was or will be; and if like to bid me, […]"
Etymology
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”).
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”).
From Middle English *sibben, *sibbien, 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”).
From the abbreviation SIB, or self-injurious behavior, a behavior found in autism.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.