Synonyms for Lower (same or very similar meaning)
WordNet sense 1 (the lower of two berths):
lower berth
WordNet sense 2 (move something or somebody to a lower position):
get down, bring down, take down
WordNet sense 3 (cause to drop or sink):
depress
WordNet sense 4 (set lower):
lour
WordNet sense 5 (make lower or quieter):
turn down
WordNet sense 6 (look angry or sullen, wrinkle one's forehead, as if to signal disapproval):
frown, glower
From the ODE community, based on WordNet
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