subtenant

n person to whom a house, flat, etc (or part of it) is sublet by a tenant （房屋、 公寓等的）转租承租人.

subsistence level, subsoil, subsonic, substance, substandard, substantial, substantially, substantiate, substantiation, substantive, substantively, substation, substitute, substitute for, substitute...for, substitution, substratum, substructure, subsume, subtenancy, subtend, subterfuge, subterranean, subtitle, subtle, subtlety, subtly, subtopia, subtopic, subtotal, subtract, subtraction, subtropical, suburb, suburban, suburbanite, Suburbia, subvention, subversion, subversive,