adv. (expressing an estimation or anxiety) for fear of, perhaps, probably, maybe, (I am) afraid that...
phr. fall over one another, push ahead for fear of lagging behind
adj. terrifying, dreadful, horrid, horrible
v. threaten, frighten
n./adj. panic, scare; frightened, scared
idiom. feel secure when one has something to fall back upon
phr. be afraid of heights, be acrophobic