CAN - To know how to; to be able to.
CON - To study, especially in order to gain knowledge of.
FAN - A hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself.
CALF - A young cow or bull.
CLAN - A group of people all descended from a common ancestor, in fact or belief.
COAL - A black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
COLA - The kola plant, genus Cola, famous for its nut, or one of these nuts.
LOAF - A block of bread after baking.
LOAN - A sum of money or other valuables or consideration that an individual, group or other legal entity borrows from another individual, group or legal entity (the latter often being a financial institution) with the condition that it be returned or repaid at a later date (sometimes with interest).
FLAN - Baked tart with sweet or savoury filling in an open-topped pastry case (the only meaning in UK).
FOAL - A young (male or female) horse, especially just after birth or less than a year old.
FOCAL - Belonging to, concerning, or located at a focus.
FALCON - Any bird of the genus Falco, all of which are birds of prey.