Definitions from Wiktionary ( )

▸ verb:  (intransitive) To move slowly with the abdomen close to the ground.
▸ verb:  (intransitive, of plants) To grow across a surface rather than upwards.
▸ verb:  (intransitive) To move slowly and quietly in a particular direction.
▸ verb:  (intransitive) To make small gradual changes, usually in a particular direction.
▸ verb:  To move in a stealthy or secret manner; to move imperceptibly or clandestinely; to steal in; to insinuate itself or oneself.
▸ verb:  To slip, or to become slightly displaced.
▸ verb:  To move or behave with servility or exaggerated humility; to fawn.
▸ verb:  To have a sensation as of insects creeping on the skin of the body; to crawl.
▸ verb:  To drag in deep water with creepers, as for recovering a submarine cable.
▸ verb:  (intransitive, African-American Vernacular, slang) To covertly have sex (with a person other than one's primary partner); to cheat with.
▸ noun:  The movement of something that creeps (like worms or snails).
▸ noun:  A relatively small gradual change, variation or deviation (from a planned value) in a measure.
▸ noun:  A slight displacement of an object; the slight movement of something.
▸ noun:  (uncountable) The gradual expansion or proliferation of something beyond its original goals or boundaries, considered negatively.
▸ noun:  (publishing) In sewn books, the tendency of pages on the inside of a quire to stand out farther than those on the outside of it.
▸ noun:  (materials science) An increase in strain with time; the gradual flow or deformation of a material under stress.
▸ noun:  (geology) The imperceptible downslope movement of surface rock.
▸ noun:  (informal, derogatory) Someone creepy (annoyingly unpleasant), especially one who is strange or eccentric.
▸ noun:  (informal, derogatory, especially) A person who engages in sexually inappropriate behaviour or sexual harassment.
▸ noun:  (agriculture) A barrier with small openings used to keep large animals out while allowing smaller animals to pass through.
▸ noun:  (historical, derogatory) Acronym of Committee to Re-elect the President, which raised money for Richard Nixon's campaign for 1972 reelection.
▸ Also see creep

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