DOG - A mammal, Canis lupus familiaris, of the genus Canis that has been domesticated for thousands of years, of highly variable appearance due to human breeding.
DOT - A small spot.
GOD - A deity:.
GOT - Simple past of get.
HOG - Any animal belonging to the Suidae family of mammals, especially the pig, the wart hog, and the boar.
HOT - Of an object, having a high temperature.
TOO - Likewise.
OOH - An expression of surprise.
GOO - Any semi-solid or liquid substance; especially one that is sticky, gummy or slippery; frequently of vague or unknown composition, or a bodily fluid.
GOOD - Acting in the interest of good; ethical.
HOOD - A covering such as worn over one's head.
HOOT - A derisive cry or shout.
GOTH - A punk-derived subculture of people who predominately dress in black.
HOTDOG - Alternative spelling of hot dog.