gambit vs stratagem

gambit and stratagem both are nouns.

Word	Noun	Adjective	Verb	Adverb
gambit	Yes	No	No	No
stratagem	Yes	No	No	No

As nouns, gambit and stratagem are synonyms defined as:

Other synonyms of gambit include ploy.

gambit (noun)	stratagem (noun)
a chess move early in the game in which the player sacrifices minor pieces in order to obtain an advantageous position	a maneuver in a game or conversation
a maneuver in a game or conversation	an elaborate or deceitful scheme contrived to deceive or evade
an opening remark intended to secure an advantage for the speaker