(blackjack) A hand of cards that are worth their face value, i.e. without any ace being counted as 11.

Able to withstand a significant amount of usage without physical deterioration; durable.

Measles, rubeola.

Alternative form of hardtack

Any tick in the family Ixodidae, differing from the so-called soft ticks in several respects, in particular in that they bear a defensive hard shield (or scutum) on the body

plural of hard tick

Steel hardened by the addition of other elements, such as manganese, phosphorus, or (usually) carbon.

plural of hard on

The reinitialization of the core hardware components of a computer system, ending any software processes and restarting the operating system. / A factory reset.

plural of hard reset