flex

As nouns the difference between flex and contortionism

is that flex is (uncountable) flexibility, pliancy while contortionism is an acrobatic display involving the dramatic bending and flexing of the human body.

As a verb flex

is to bend something.

As nouns the difference between flex and brachioradialis

is that flex is (uncountable) flexibility, pliancy while brachioradialis is (anatomy) a muscle that flexes the forearm at the elbow.

As a verb flex

is to bend something.

As nouns the difference between flex and ischiocavernosus

is that flex is flexibility, pliancy while ischiocavernosus is a muscle just below the surface of the perineum, used to flex the anus, stabilize the erect penis (in males), and tense the vagina (in females).

As a verb flex

is to bend something.

As a noun flex

is (uncountable) flexibility, pliancy.

As a verb flex

is to bend something.

As an adjective flexile is

flexible.

As nouns the difference between flex and flexagon

is that flex is (uncountable) flexibility, pliancy while flexagon is (geometry) a flat model made from folded strips of paper that can be folded, or flexed, to reveal a number of hidden faces.

As a verb flex

is to bend something.