14-Letter Words Starting: FO

• the act of making formal (as by stating formal rules governing classes of expressions)

• thoughtful of the future

• the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone

• becoming inflexible or out of date

• knowledge of an event before it occurs

• the quality of being honest and straightforward in attitude and speech

• defensive structure consisting of walls or mounds built around a stronghold to strengthen it

• the art or science of strengthening defenses

• the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)

• physical energy or intensity