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1. Not soft or yielding to pressure
   "a firm mattress"; "the snow was firm underfoot";
   - solid
    
2. With more than adequate force or sureness
   "a firm grasp";
   - strong
    
3. Marked by firm determination or resolution; not shakable
   "firm convictions"; "a firm mouth";
   - steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering, unshakeable
    
4. Not subject to revision or change
   "a firm contract"; "a firm offer"
    
5. (of especially a person's physical features) not shaking or trembling
   "his voice was firm and confident"; "a firm step"
    
6. Not liable to fluctuate or especially to fall
   "stocks are still firm";
   - steady, unfluctuating
    
7. Securely established
   "holds a firm position as the country's leading poet"
    
8. Possessing the tone and resiliency of healthy tissue
   "firm muscles"
    
9. Securely fixed in place
   "the post was still firm after being hit by the car";
   - fast, immobile
    
10. Unwavering in devotion to friend, vow or cause
    "a firm ally";
    - loyal, truehearted, fast

1. The members of a business organization that owns or operates one or more establishments
   "he worked for a brokerage firm";
   - house, business firm

1. Become taut or tauter
   "Your muscles will firm when you exercise regularly";
   - tauten
    
2. Make taut or tauter
   - tauten

1. With resolute determination
   "you must stand firm";
   - firmly, steadfastly, unwaveringly

Derived forms: firms, firmed, firming, firmest, firmer

See also: faithful, fixed, forceful, hard, healthy, resolute, secure, settled, stable, steady

Type of: business, business concern, business organisation [Brit], business organization, concern, fasten, tighten

Encyclopedia: Firm