In English Dictionaries which show phonetic symbols for pronunciation, the O in the word COME is pronounced like the U in UP. So COME rhymes with hum.
The O in FROM is pronounced like the O in HOT....
Some words that can come after the word 'house' are: houseboat housecat housecoat housebound housefly houseful household househusband houseman housemate housepest houseplant housetop housewares...