›[I or T]to be the right size or shape for someone or something: Their trained staff can take one look at your figure and tell you which brand of jeans is most likely to fit you.fit in/intoThe device is small enough to fit into a shirt pocket.
›[T]to add a piece of equipment to something else: Some insurance firms offer lower premiums to people who fit security locks and alarms.fit sth on/onto/to sthYou can claim money for having solar cells fitted on your home.fit sth with sthThe vehicle may be fitted with a satellite tracking system.
›[T]to be suitable for someone or something: You adjust your strategy to fit the business realities.Her new role fits her well.What alternatives fit the needs of the corporation and provide the best solution?
›[I+ adv/prep]if two or more things fit, or if one thing fits with another, they suit each other well: fit togetherThe organization and the people must fit together.fit with sthWe select individuals who are most likely to fit with the firm's culture.
›[T]mainly UKto make someone or something suitable for something: fit sb/sth for sthHow do you think your career to date has fitted you for this particular job?fit sb/sth to do sthAcademic qualifications alone do not fit a person to become a good manager.
fit the bill›to be suitable for a particular purpose: Some travel policies don't fit the bill, because they limit the amount of time you can spend abroad.