BEE - A flying insect, of the superfamily Apoidea, known for their organised societies, for collecting pollen, and producing wax and honey.
BET - A wager, an agreement between two parties that a stake (usually money) will be paid by the loser to the winner (the winner being the one who correctly forecast the outcome of an event).
FEE - Cattle; livestock, especially considered as the basis of wealth.
TEE - The name of the Latin script letter T/t.
REF - Referee.
BEEF - The meat from a cow, bull or other bovines.
BEER - An alcoholic drink fermented from starch material commonly barley malt, often with hops or some other substance to impart a bitter flavor.
FEET - Plural form of foot.
FREE - Not imprisoned or enslaved.
REEF - Scabby; scurvy.
TREE - A large plant, not exactly defined, but typically over four meters in height, a single trunk which grows in girth with age and branches (which also grow in circumference with age).
BEET - Beta vulgaris, a plant with a swollen root which is eaten or used to make sugar.
FRET - A fog or mist at sea or coming inland from the sea.
FETE - A festival open to the public, the proceeds from which are often given to charity.
BERET - A type of round, brimless cap with a soft top and a headband to secure it to the head; usually culturally associated with France.
BEREFT - Simple past tense and past participle of bereave.