applying or capable of being applied; relevant; suitable; appropriate: an applicable rule; a solution that is applicable to the problem.
Origin: 1400–50; < Latin applic(āre) to apply + -able, or < Middle French applicable,Medieval Latin applicābilis; replacing late Middle English appliable
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
1560s, "pliable," from L. applicare (see apply). Meaning "capable of being applied" is attested by 1660; earlier in this sense was appliable (1550s). Related: Applicability (1650s).