12-letter words containing f, a, m, i, l
- surface mail — the system, especially a government postal system, of sending mail by truck, train, or boat, as opposed to airmail.
- unformalized — not formalized
- unformidable — causing fear, apprehension, or dread: a formidable opponent.
- unmeaningful — not meaningful; without significance.
- unmodifiable — incapable of being modified
- wing formula — a numerical representation of the relative lengths of the primary feathers of a bird's wing, used in identifying similar species, as flycatchers.