firm

1 firm /ˈfɚm/ adjective
firmer; firmest
1 firm
/ˈfɚm/
adjective
firmer; firmest
Britannica Dictionary definition of FIRM
1 
: fairly hard or solid : not soft
2 
: set, placed, or attached in a way that is not easily moved — often used figuratively
3 
: not weak or uncertain
4 
a  : not likely to change or be changed
b  : having or showing true and constant support for something or someone

hold firm

— see 1hold

stand firm

— see 1stand

— firmly

adverb

— firmness

noun [noncount]
2 firm /ˈfɚm/ verb
firms; firmed; firming
2 firm
/ˈfɚm/
verb
firms; firmed; firming
Britannica Dictionary definition of FIRM
1 
[+ object] : to put (something, such as a plan) into a final form — usually + up
2 
[+ object] : to make (something) harder or more solid : to make (something) less loose
3 
[+ object] : to make (something) stronger
4 
[no object] : to become less likely to change or become weaker — often + up

— firming

adjective
3 firm /ˈfɚm/ noun
plural firms
3 firm
/ˈfɚm/
noun
plural firms
Britannica Dictionary definition of FIRM
[count]
: a business organization