General English

General Science

  • adjective referring to something that is suitable for its purpose
  • adjective referring to an organism that is well adapted or evolutionarily successful
  • verb to be the correct size and shape for someone or something


  • adjective in good physical condition, healthy
  • noun the exactness with which surfaces are adjusted to each other in a machine

Cars & Driving

  • noun the way in which two parts come together, with varying degrees of tightness
  • verb to fix or put into place


  • verb to be the right size for something


  • verb to plot or calculate a curve that most closely approximates a number of points or data

Information & Library Science

  • adjective to be physically capable of doing something


  • adjective physically or mentally able to do something

Media Studies

  • noun the situation when an article or headline is the right size for the space allotted to it.


  • noun a sudden attack of a disorder, especially convulsions and epilepsy
  • verb to provide a piece of equipment for someone to wear


  • adjective physically strong and healthy, especially as a result of taking regular exercise


  • noun the space between typeset characters; the alignment of text and images on the page


  • adjective excellent, fashionable. A vogue term among adolescents in the early 1990s. Synonyms are mint and top.
  • noun a set of clothes
  • noun the materials needed to prepare and inject heroin; the ligature, burner and hypodermic. An item of prisoners’ and addicts’ slang of the 1990s.


  • acronym forfailure in time
    (written as FIT)


  • acronym forfrequent independent traveller
    (written as FIT)
  • noun an independent traveller who travels often.

Origin & History of “fit”

English has three distinct words fit, but the history of them all is very problematical. The verb fit ‘make suitable, be the right size, etc’ (16th c.), and the presumably related adjective ‘proper, appropriate’ (14th c.) may come from a middle English verb fitten ‘marshal troops’, but that only pushes the difficulty one stage further back, for no one knows where fitten came from. (The derivative outfit dates from the 18th century.) Fit ‘seizure, sudden outburst’ (14th c.) may be the same word as Old English fitt ‘conflict’, whose antecedents again are obscure (fitful was formed from it in around 1600, but was not widely used before the 19th century). Fit ‘section of a poem’ (OE) also comes from an Old English fitt, which might conceivably be identical with Old English fitt ‘conflict’; but an alternative possibility is some connection with Old high German fizza ‘skein’ and Old Norse fit ‘hem’.