They didn't seem to understand the 'gravity' [='seriousness'] of the situation.
He uttered the oath with proper 'gravity'. [='solemnity']
Its low 'center of gravity' makes the car very stable.
(..) would you, for Christ's sake? We're hot. We're getting hotter. Engine room, red clip status? - One kilometer on ascension. - Engage artificial gravity. - Engaged. - I'm altering the vector now. Inhibit CNG control. - Struts retract. - Struts retracted. (..)1979 Alien