/ Dictionary / Index H hotbox: Meaning and Definition of Find definitions for: hot•box Pronunciation: (hot'boks"), [key] — n. Railroads. a journal box overheated by excessive friction of an axle as a result of inadequate lubrication or the presence of foreign matter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hotbox (Thesaurus) hot-blooded hot-bulb engine Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language