fit1

adjective (fitter, fittest)

• 1 [predic.] (of a thing) of a suitable quality, standard, or type to meet the required purpose:the meat is fit for human consumption [with infinitive]:is the water clean and fit to drink?
• (of a person) having the requisite qualities or skills to undertake something competently:he felt himself quite fit for battle [with infinitive]:Ted was ghastly pale and fit to do no more than switch channels
• suitable and correct according to accepted social standards:a fit subject on which to correspond
• [with infinitive] informal (of a person or thing) having reached such an extreme condition as to be on the point of doing the thing specified:he baited even his close companions until they were fit to kill him
• informal ready:well, are you fit?

• 2in good health, especially because of regular physical exercise:I swim regularly to keep fit figurativethe measures would ensure a leaner, fitter company
• British informal sexually attractive; good-looking.

verb (fits, fitting, fitted or fit)

• 1be of the right shape and size for:those jeans still fit me [no object]:the shoes fit better after being stretched
• (usually be fitted for) try clothing on (someone) in order to make or alter it to the correct size:she was about to be fitted for her costume
• [no object] be of the right size, shape, or number to occupy a particular position or place:Angela says we can all fit in her car

• 2fix or put (something) into place:they fitted smoke alarms to their home
• (often be fitted with) provide (something) with a particular component or article:most tools can be fitted with a new handle
• join or cause to join together to form a whole: [no object]:it took a while to figure out how the confounded things fit together [with object]:many physicists tried to fit together the various pieces of the puzzle

• 3be in agreement or harmony with; match:the punishment should fit the crime
• (of an attribute, qualification, or skill) make (someone) suitable to fulfill a particular role or undertake a particular task:an MS fits the student for a professional career

noun

• the particular way in which something, especially a garment or component, fits around or into something:the dress was a perfect fit
• the particular way in which a thing matches something else:a close fit between teachers' qualifications and their teaching responsibilities
• Statistics the correspondence between observed data and the values expected by theory.