Middle center vowels: /ʌ/ vs /ə/ 

Both /ʌ/ and /ə/ share the same coordinating point, the middle center of the mouth. They differ in stress. /ʌ/ is used for a stressed syllable, and /ə/ is used for unstressed syllables.

/ʌ/ words 

Some common words with /ʌ/ include the following:

 with “u”: 

bun, bus, but, butter, cut, fun, gun, luck, lunch, run, summer, sun, Sunday, thunder, truck, tunnel, under, up, us

 with “o”: 

Monday, money, monk, monkey, month, honey, London, onion, son, wonder, wonderful, cover, covet, discover, dove (bird), glove, love,oven, shovel

 with “ou” 

country, couple, cousin, double, southern, touch, trouble, young

 with “oo”: 

blood, flood

 with “ough”: 

rough, enough, tough

/ʌ/ homophones

These are homophones: 

none - nun 

one - won 

some - sum 

son - sun

/æ/, /ʌ/ minimal pairs

ankle uncle 

ban bun 

bank bunk 

batter butter 

cab cub 

cap cup 

cat cut

dam dumb 

drank drunk 

hat hut

lack luck 

paddle puddle 

rag rug 

ran run 

sack suck 

sank sunk 

snag snug 

stack stuck 

track truck 

tramp trump