Acquaint rhymes with:
quaint, quaint, ain't, complaint, constraint, faint, feint, jonassaint, paint, quaint, repaint, restraint, saint, taint
Acquaint sounds like:
acantha, accent, accented, accentuate, accentuated, accomando, accommodate, accommodated, account, accounted, achmed, acmat, acquainted, agenda, agent, agneta, ajinomoto, aksamit, aquanaut, ascend, ascended, ascent, ashamed, ashmead, assante, assassinate, assassinated, assent, assessment, assigned, assignment, assumed, augment, augmented, ausimont, awakened