Meanings

static

a doctrinaire

air-borne bacteria

air rights

clicking the shutter of a camera without taking a picture (because no film is loaded, or in order to advance the film)

air compressor

air resistance

pneumatic machinery

idling (of an engine)

false or crocodile tears

air power

vacant house

free time

dry moat

landing fee

empty promise

feigned sleep

gossip

blank (ticket)

virtual space (e.g. in computer graphics)