The /ɒ/ sound is a short vowel sound in the English language that is pronounced by rounding the lips. This sound can be heard in many one-syllable words such as 'hot', 'got', 'not', and 'mop'. It is also present in many two-syllable words such as 'lemon', 'weapon', and 'yellow'.

Single syllable words: 

hot, not, dot, lot, got, pot, shot, cot, rot, tot, knot, jot, slot, snot, blot, squat, trot, yacht, splotch, blotch, clod, flop, frog, jog, job, mob, nod, pod, rob, sod, sob, cod, bod, dog, log, hog, bog, fog, frog, jog, job, mob, nod, pod, rob, sod, sob, cod, bog, fog, log

Two syllable words: 

robin, cotton, bottom, rotten, soften, cobweb, stopper, trotter, monster, hostage, honest, problem, robber, column, bother, fossil, doctor, copper, dollar, offer, proper, often, coffee, common, foster, rotten, follow, hollow, swallow, borrow, sorrow, option, robber, foster, soften, often, fossil, profit, gossip, conquer, respond, comment, colleague, content, constant, concert, concept, combat, comic, console, convoy, goddess, gospel, gossip, hostile, jolly, longish, modest, nonsense, novel, oblige, option, ostrich, pollen, posture, problem, product, profit, prophet, robbers, rocket, squalor, solemn, solid, sombre, sopping, sovereign, sponsor, topic, toxic, trotting, watchman, watchmen, yonder

Sentences: 

The bottom of the bottle was rotten and the cotton ball was full of pollen.

I had to borrow a dollar from my father to buy some coffee.

The robber fled into the hollow of the forest and left behind his rotten cotton mask.

The doctor prescribed a pill to stop the problem in my stomach.

The novelist followed the slogan "honesty is the best policy" and wrote a novel about a robber who left his coffin in a hollow.