hollow; mid-air; air; sky
tailspin; spin; drilling; boring
form; shape; state; condition; letter; correspondence
obstinate; stubborn; mulish; die-hard; bigoted
to shift one's attention to; to shift one's focus on
behind; in the rear; in back
accident resulting in personal injury or death (esp. traffic, rail, etc.)
to run over (with a vehicle); to knock down
in an instant; in a flash; right away; immediately
optical illusion; hallucination; misapprehension; delusion
exactly; surely; right then; just then; just (about to); on the verge (of doing or happening)
under (influence, control, conditions, etc. of); during (war, occupation, etc.)
skilled; skillful; skilful; competent; capable; good
scientific capability; scientific ability (e.g. of a student); scientific strength (e.g. of a country); level of technological development
to start; to begin; to challenge; to pick (a fight); to set (traps); to plant (explosives)
contradiction; inconsistency
earth; ground; place; territory; bottom (of a package, book, etc.); earth (one of the five elements)
bodily sensation; sense; experience
eternity; perpetuity; permanence; immortality
firing (esp. a rocket or missile); launching; shooting; ejaculation
though; notwithstanding; although
to draw an arc (e.g. with a compass); to describe an arc (e.g. through the air)
footpath; walkway; sidewalk
reaching; attaining; arrival
as one would expect; just as you'd expect (from); just like (someone)
to be lucky; to be in luck; to be attached; to have; to be included
to shake off; to throw off
very good luck; excellent fortune
from the beginning; without hesitation; flatly (e.g. refusing); entirely; completely
lying face down; lying on one's face; placing upside down; placing face down
clear; clearing (a bar, hurdle, etc.); overcoming; getting through; clearing (the ball); clearing (e.g. a checked box)
home area; home town; local
besides; in addition; also; moreover
blow; hit (on the body); beating
at leisure; in a relaxed manner; in a carefree manner; quietly; peacefully