Some compound words starting with under include:underbrushunderclothesundercookundercoverundercutunderdoneunderestimateundergoundergroundundergrowthunderdevelopedunderhandedunderlineunderlyingundermineundernourishedunderpaidunderpantsunderpinningunderplayunderperformedunderratedundershortsundershotundersideunderstandunderstateunderstoodundertakeundertowunderusedunderwear
underwear
under
Upwards is a compound word.
Upstairs is a compound word, so it is one word.
underarmunderageunderbellyunderbrushundercoatunderclassunderclothesundercoverunderdogundergroundundergrowthundergoneunderhandunderlineunderlieundermineunderpassunderpinunderplayunderperformedunderprivilegedunderratedunderseaunderscoreundersizedunderstandundershirtunderstateundertakingundertoneunderutilizedundertakerunderwearunderwhelmundervalueunderwayunderwentunderwearunderwriterunderweightunderwater
Some compound words starting with under include:underbrushunderclothesundercookundercoverundercutunderdoneunderestimateundergoundergroundundergrowthunderdevelopedunderhandedunderlineunderlyingundermineundernourishedunderpaidunderpantsunderpinningunderplayunderperformedunderratedundershortsundershotundersideunderstandunderstateunderstoodundertakeundertowunderusedunderwear
Asunder. It has the words "as" and "under", so it is made up of two individual words, making it a compound word.
under-ground
underwear
gohandminerate
under-wear
Dora the explorers under wear
underwear, underworld, understudy, underestimate
under
Yes, the word understand is a compound work made up of 'under' and stand'.In this case, under refers to underlying meaning and stand refers to seeing so understand is "to comprehend what one sees" (from Old English standan and understandan).
No It's not a compound word