Meaning of “kit” - Learner’s Dictionary

kit

noun uk us /kɪt/
COLLECTION [ C ]

B1 a collection of things kept in a container ready for a particular use:

a first-aid/tool kit
CLOTHES [ C, U ] UK

A2 a set of clothes worn for sport or military service:

a football kit
PARTS [ C ]

a set of parts that you put together to make something:

He's making a model car from a kit.

(Definition of “kit” from the Cambridge Learner’s Dictionary © Cambridge University Press)