cover

Cover stands for:

Cover (printing) , a term used in printing
a key figure in botany, see vegetation survey # Plant-sociological vegetation survey
the availability of a necessary quantity, see coverage of requirements
in the animal sector the bringing together of male and female animals for the purpose of mating
Cover (artillery) , a specific type of hit position during a fire fight
Cover (Freemasonry) , leaving the lodge or the league

Cover means in connection with protection, defense:

Cover (sport) , a game practice, technique, tactics and manner in team sport; in detail:

Man covering , covering in which each player covers his immediate opponent
Area coverage, coverage in which each player covers a certain part of the playing field

in chess the protection of a piece, see strategy (chess)

In economic contexts, cover stands for:

Cover (economy) , the security of a bond
Account coverage , availability of sufficient credit (free credit lines) for a banking transaction
Currency cover , the collateral for a currency
Coverage (insurance) , the range of services provided by an insurer in the event of a claim
Mathematical reserve , an actuarial term
Cover capital , an actuarial term
the possibility of using budget funds for another purpose, see Eligibility

Others:

Coverage ratio, in statistics the proportion of a subset labeled with a certain characteristic of a total quantity

See also:

Wiktionary: cover - explanations of meanings, word origins, synonyms, translations