"upwind" in the adjective sense
1. upwind, weather
towards the side exposed to wind
"upwind" in the adverb sense
1. leeward, upwind
away from the wind
"they were sailing leeward"
2. upwind, against the wind, into the wind
in the direction opposite to the direction the wind is blowing
"they flew upwind"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License