firm >> fəːm
Definition: [adjective] having a solid, almost unyielding surface or structure.
Example: the bed should be reasonably firm, but not too hard
Definition: [adjective] strongly felt and unlikely to change.
Example: he retains a firm belief in the efficacy of prayer
Definition: [verb] make more solid or resilient.
Example: how can I firm up a sagging bustline?
Definition: [adverb] in a resolute and determined manner.
Example: the Chancellor has held firm to tough economic policies