friction; discord; strife
to confute; to argue down; to persuade; to convince; to prevail on
one copy (of a document); one letter; one-way traffic; pure straight; winning hand containing nine consecutive tiles of the same suit (i.e. 1-9)
enclosing (e.g. with a letter)
original (that was parodied or acted as an inspiration for something else, etc.); source
strong person; the strong; the powerful
weak person; the weak; vulnerable person; disadvantaged person
Soviet Union; Union of Soviet Socialist Republics; USSR
hum (of a TV, radio, etc.)
preventive measure; precautionary measure
episode; anecdote; vignette
Apollo program; Project Apollo; Apollo (Greek and Roman god)
to be of use as a reference; to be helpful
old book; rare book; classic; secondhand book; used book
aforementioned; above-mentioned
document; reportage; documentary; documentation
security police; special police; special; TV special; standard-playing (record); SP; shore patrol
Soyuz (Russian spacecraft)
worthwhile reading; substantial reading
last; final; end; conclusion; rust
civil rights movement (esp. American)
root (of a plant); stump (of a tree); root (of a problem, etc.); base
stepper (device used in the manufacture of integrated circuits)
spoiler; revealing important plot points of a story; spoiling a story
original story; original version; this volume
based on; on the basis of
visit to the United States
second; number two; runner-up
to bring forward (e.g. by 3 hours); to advance; to hasten (e.g. one's death); to quicken (e.g. one's step); to speed up; to accelerate