Difference between Firstly and Foremost

Firstly

Part of speech: adverb

Definition: In the first place; before anything else; first.

Foremost

Part of speech: adjective

Definition: first, either in time or in spaceof a higher rank or position; paramountclosest to the bow

Part of speech: adverb

Definition: in frontprominently forward

Example sentence: First and foremost, it's paramount for young child to learn how to swim, and the best place for that to happen is at primary school if they've got the facilities.