Here is a list of nouns that start with SUB.

sub, subaltern, subcommittee, subcontinent, subdivision

subhumanity, subject, subjectivist, subjectivity, subjugation

sublease, sublimate, sublime, submarine, submission

submitting, submucosa, subordinate, subordinator, subparagraph

subrogation, subroutine, subscription, subsection, subservience

subsidiary, subsidy, subsistence, subsoil, subspace

substance, substantiation, substitute, substitution, substrate

substratum, substructure, subsystem, subtlety, subtraction

subtype, suburb, suburbanite, suburbia, subversion

subway

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