DEN - The home of certain animals.
END - The final point of something in space or time.
NOD - To incline the head up and down, as to indicate agreement.
OFF - In a direction away from the speaker or object.
ONE - A numerical value equal to 1; the first number in the set of natural numbers (especially in number theory); the cardinality of the smallest nonempty set. Ordinal: first.
DOE - A female deer; also used of similar animals such as reindeer, antelope, goat.
ODE - A short poetical composition proper to be set to music or sung; a lyric poem; esp., now, a poem characterized by sustained noble sentiment and appropriate dignity of style.
DON - A university professor, particularly one at Oxford or Cambridge.
FEN - A type of wetland fed by ground water and runoff, containing peat below the waterline.
DONE - Ready, fully cooked.
FOND - Having a liking or affection (for).
NODE - A knot, knob, protuberance or swelling.
FEND - An enemy; fiend; the Devil.
OFFEND - To hurt the feelings of; to displease; to make angry; to insult.