Synonyms for Depress (same or very similar meaning)
WordNet sense 1 (lower someone's spirits; make downhearted):
deject, demoralize, dismay, dispirit, demoralise, get down, cast downWordNet sense 2 (cause to drop or sink):
lower, lowerWordNet sense 3 (press down):
press downFrom the ODE community, based on WordNetadd/edit