The term 'be recumbent' is a phrase used to describe a person or object that is LYING down. The crossword solutions for this term are 'LIE' (3 letters), 'LYING' (5 letters), 'PRONE' (5 letters), and 'lier' (4 letters). 'LIE' is a verb meaning to rest in a horizontal position, while 'LYING' is the present participle of the verb. 'PRONE' is an adjective meaning LYING face down, and 'lier' is a noun meaning someone who tells lies.