feed box; a narrow depression (as in the earth or between ocean waves or in the ocean bed)
Trough in a sentence
The farmer filled the trough with fresh grain.
Synonyms for trough
channel
depression
valley
Antonyms for trough
peak
crest
summit
Practice trough on real SAT questions
Vocabulary like trough appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.