n. Plural form of firm. Firm: Resistant to externally applied pressure.
n. The principal rafters of a roof, especially a pair of rafters taken together.
v. Third-person singular simple present indicative form of firm.
the GNU version of the Collaborative International Dictionary of English
noun-plural. The principal rafters of a roof, especially a pair of rafters taken together.
Word Usage
"By my back-of-the-envelope calculations, what UM — following a methodology its competitors use — reports as an “average” salary for graduates in firms, is most likely closer to what someone in the 75th percentile of the salary distribution gets."