space; air; midair; (from) memory; (by) heart
to crack; to develop a crack
inverted; upside down; reversed; back to front
to wander; to roam from place to place
to run out of breath; to be short of breath; to run out of steam; to be unable to continue; to die
off the mark; off base; misdirected; irrelevant
fearfully; timidly; cautiously; nervously
horseback riding; sitting astride; straddling
qualifications; requirements; capabilities
what did you do?; is anything the matter?; what seems to be the problem?; can I help you?
to come back (to); to return to a starting point
to pound (e.g. heart); to pulse (e.g. vein); to pulsate
to have a nightmare; to make a noise during a nightmare
noisy; boisterous; turbulent (era, etc.); troubled
casual; doing something without taking it too seriously
to collect (debts); to dun; to appoint; to promote; to emphasize; to focus on
to come and go; to go back and forth
early (days); initial stage; initial
twelfth day of the month; twelve days
organization; organisation; forming
twenty-second day of the month; twenty-two days
a considerable number; a fair number
twenty-sixth day of the month; twenty-six days
recovery; rescue; recapture
thin (e.g. air); diluted; sparse; lacking (e.g. empathy); deficient; insufficient (e.g. zeal)
strengthening; intensifying; reinforcement; enhancement; solidification
twenty-eighth day of the month; twenty-eight days
type 1; category 1; first class
alert status; emergency alert
to originate with; to start with; to stem from
addition; adding; supplement
cumulative total; accumulated total; total up to now
(arch.) to be; (arch.) to be (location); sum of money
death toll; number of deaths; body count
note (for reference); remarks; N.B.
setting up (a structure, building, camp, etc.); construction; preparation (e.g. of a venue); arrangement (of an event)