1. (adj)firm, house, business firm the members of a businessorganization that owns or operates one or more establishments "he worked for a brokerage house"
2. (adj)firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering marked by firmdetermination or resolution; not shakable "firm convictions"; "a firm mouth"; "steadfast resolve"; "a man of unbendable perseverence"; "unwavering loyalty"
3. (adj)firm, solid not soft or yielding to pressure "a firm mattress"; "the snow was firm underfoot"; "solid ground"
4. (adj)firm, strong strong and sure "a firm grasp"; "gave a strong pull on the rope"
6. (adj)firm (of especially a person's physical features) not shaking or trembling "his voice was firm and confident"; "a firm step"
7. (adj)firm, steady, unfluctuating not liable to fluctuate or especially to fall "stocks are still firm"
8. (adj)firm securely established "holds a firm position as the country's leading poet"
9. (adj)firm possessing the tone and resiliency of healthy tissue "firm muscles"
10. (adj)fast, firm, immobile securely fixed in place "the post was still firm after being hit by the car"
11. (verb)firm, loyal, truehearted, fast(a) unwavering in devotion to friend or vow or cause "a firm ally"; "loyal supporters"; "the true-hearted soldier...of Tippecanoe"- Campaign song for William Henry Harrison; "fast friends"
12. (verb)tauten, firm become taut or tauter "Your muscles will firm when you exercise regularly"; "the rope tautened"
13. (adverb)tauten, firm make taut or tauter "tauten a rope"
14. (adverb)firm, firmly, steadfastly, unwaveringly with resolute determination "we firmly believed it"; "you must stand firm"
Definitions of 'FIRM'
Webster 1913 Dictionary
1. (adj)FIRM the name, title, or style, under which a company transacts business; a partnership of two or more persons; a commercial house; as, the firm of Hope & Co
2. (adj)FIRM to fix; to settle; to confirm; to establish
4. FIRM fixed; hence, closely compressed; compact; substantial; hard; solid; -- applied to the matter of bodies; as, firm flesh; firm muscles, firmwood
5. FIRM not easily excited or disturbed; unchanging in purpose; fixed; steady; constant; stable; unshaken; not easily changed in feelings or will; strong; as, a firm believer; a firm friend; a firmadherent
Definition of FIRM 
