Meanings

central (nervous system)

central nervous system

important point

state secrets

axle

(most) important

centre

Axis powers (World War II)

central nerves

Privy Council (abolished in 1947)

language center (brain)

nerve centre

respiratory center

central nervous system

Axis of Evil (Iran, Iraq and North Korea)

Wernicke's area

pivot hinge (using extensions on the top and bottom of a door that fit into cavities in the frame)

door (with a pivot hinge)

sliding wooden bolt (for holding a door or window shut)

centre of (political) power