Go back to Nicholas's IPA Machine 
əʊ
Words with an obvious əʊ
so, OK, home, photo, mobile, phone, rowboat, robot, ghost, hope, joke, nose,
note, code, doze, rose, stolen, hole, alone, rogue, pole, role, sole
Words with a surprise əʊ sound
poll, roll, soul, soap, loaf, load, both, folk, gross, though, dough,
boat, coach, cockroach, toast, roast, sow (verb), low, slow, grow, bowl
and French loanwords such as: mauve, fauve