Definition of "cat"
cat1
/kæt/
noun
countable and uncountable, plural cats
verb
third-person singular simple present cats, present participle catting, simple past and past participle catted
cat2
/kæt/
verb
third-person singular simple present cats, present participle catting, simple past and past participle catted
cat3
/kæt/
noun
plural cats
Abbreviation of computed axial tomography. Often used attributively, as in “CAT scan” or “CT scan”.
adjective
not comparable
(Ireland, colloquial) Catastrophic; terrible, disastrous.