The adj strong has 10 senses (first 3 from tagged texts)
1. (63) strong -- (having strength or power greater than average or expected; "a strong radio signal"; "strong medicine"; "a strong man")
2. (9) strong -- (not faint or feeble; "a strong odor of burning rubber")
3. (3) potent, strong -- (having or wielding force or authority; "providing the ground soldier with increasingly potent weapons")
4. potent, strong, stiff -- (having a strong physiological or chemical effect; "a potent toxin"; "potent liquor"; "a potent cup of tea", "a stiff drink")
5. impregnable, inviolable, secure, strong, unassailable, unattackable -- (able to withstand attack; "an impregnable fortress"; "fortifications that made the frontier inviolable")
6. solid, strong, substantial -- (of good quality and condition; solidly built; "a solid foundation"; "several substantial timber buildings")
7. strong -- (of verbs not having standard (or regular) inflection; "`sing' is a strong verb")
8. hard, strong -- (being distilled rather than fermented; having a high alcoholic content; "hard liquor")
9. strong, warm -- (freshly made or left; "a warm trail"; "the scent is warm")
10. firm, strong -- (strong and sure; "a firm grasp"; "gave a strong pull on the rope")