Word: downcast
Part of speech: Noun
Syllables: down
cast
Definition: A ventilating shaft down which the air passes in circulating through a mine.
Morphemes:
Affix: down-
Language: en
PoS: Prefix
Meaning: lower position or direction, literally or figuratively.
Affix: cast
Language: en
PoS: Noun
Meaning: Something which has been thrown, dispersed etc.