Definitions
1.NounA business partnership; the name under which it trades.
2.NounA business enterprise, however organized.
3.NounA criminal gang, especially based around football hooliganism.
4.AdjectiveSteadfast, secure, solid (in position)"It's good to have a firm grip when shaking hands."
5.AdjectiveFixed (in opinion)."a firm believer; a firm friend; a firm adherent; firm favourites"
6.AdjectiveInsistent upon something, not accepting dissent."He wanted to stay overnight, but I was firm with him and said he had to leave today."
7.AdjectiveDurable, rigid (material state)."firm flesh; firm muscles, firm wood; firm land (i.e. not soft and marshy)"
8.AdjectiveMentally resistant to hurt or stress.
9.AdjectiveNot frivolous or fallacious; trustworthy; solid; dependable.
10.Adverbfirmly, steadily
11.VerbTo make firm or strong; fix securely.
12.VerbTo make compact or resistant to pressure; solidify.
13.VerbTo become firm; stabilise.
14.VerbTo improve after decline.
15.VerbTo shorten (of betting odds).
16.VerbTo grit one's teeth and bear; to push through something unpleasant."I know you aren't feeling well, but just firm it."
17.VerbTo select (a higher education institution) as one's preferred choice, so as to enrol automatically if one's grades match the conditional offer.