Used other than figuratively or idiomatically: see fit, in. / (figuratively, intransitive) To be of a like type with others; to be socially accepted. / (with with) To suit or conform to.

(obsolete) Characterized by fits (convulsions or seizures). / (by extension) Characterized by sudden bursts of activity with periods of inactivity in between; intermittent, irregular, unsteady.

The quality of being fitful.

plural of fitness

(countable) Initialism of feed-in tariff. / (uncountable, aviation, travel industry) Initialism of fully inclusive tour. / (uncountable, aviation, travel industry) Initialism of fully independent travel.

plural of FiT

plural of FIT

Initialism of feed-in tariff.

plural of fitfulness

Third-person singular simple present indicative form of fit in