Tymnet rhymes with:
imnet, allnet, arpanet, avnet, bayonet, bissonnette, cellnet, dragnet, driftnet, ethernet, filenet, imnet, instinet, internet, investnet, massenet, raynet, robinette, rudnet, sassnet, selectnet, seniornet, spacenet, telenet, usenet
Tymnet sounds like:
taint, tainted, tamed, tandy, tanimoto, tanned, tant, taunt, taunted, teamed, teammate, tedmond, tedmund, tenant, tend, tended, tenement, tenet, tennant, tennent, tent, tenth, tenuta, tettamanti, themed, thinned, timed, timeout, timid, timidity, timothea, timothy, tint, tinted, tinto, titanate, tomato, tomatoe, tomita, tonawanda, tonda, toned, tonite, tonti, toutant, tummond, tunde, tuned, twentieth, twenty, twined