| v. t. | 1. | To bend; |
| n. | 1. | Flax. |
| Noun | 1. | flex - the act of flexing; "he gave his biceps a flex to impress the ladies" |
| Verb | 1. | flex - contract; "flex a muscle" |
| 2. | flex - exhibit the strength of; "The victorious army flexes its invincibility" | |
| 3. | flex - form a curve; "The stick does not bend" Synonyms: bend | |
| 4. | flex - bend a joint; "flex your wrists"; "bend your knees" Synonyms: bend | |
| 5. | flex - cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar" |