The /ʌ/ sound is a short vowel sound in the English language that is pronounced by dropping the tongue slightly from the schwa sound. This sound can be heard in many one-syllable words such as gut', 'hut', and 'mud'. 

Single syllable words: 

hut, cut, but, nut, rut, up, cup, pup, sup, duck, luck, muck, puck, tuck, yuck, bug, dug, hug, jug, lug, mug, plug, rug, slug, snug, thug, drug, shrug, club, grub, hub, nub, pub, rub, sub, tub, chub, scrub, flood, blood, mud, stud, bud, cud, dud, spud, thud, snug, shrug, scud, slub, smug, snug, thug, blub

Two syllable words: 

adjust, disgust, discuss, erupt, corrupt, disrupt.

Sentences: 

The sun must come up before the bus runs.

The muddy pup jumped up and ran in the sun.

Just because it's tough doesn't mean you should give up.

The cup was full of runny mud from the rain.

The young buck jumped over the rough brush.

The hush fell over the lush valley at dusk.

The rusted truck bumped up the hill and then stopped.

The drum thumped loudly in the club.

The sudden gust of wind made the umbrella flip up.

The crumbly muffin fell apart in my hands.