The Oxford Thesaurus An A-Z Dictionary of Synonyms INTRO ...

with. join, associate with, become associated or allied with,
befriend; cooperate with, go along with, concur with, support,
accept: He fell in with a gang of thieves and spent the next
few years avoiding the police. She agreed to fall in with my
plan. 16 fall off. diminish, decrease, decline, deteriorate:
Business falls off immediately after Christmas. 17 fall on or
upon. attack, assault, assail, set upon: Three muggers fell on
me and stole my wallet. 18 fall out. disagree, differ, quarrel,
clash, squabble, wrangle, dispute, fight: We fell out over
politics. 19 fall short. prove or (turn out to) be inadequate
or insufficient or deficient or lacking or wanting or
disappointing, miss, fail, disappoint: The results of the sales
campaign fell short of expectations. 20 fall through. fail,
come to nothing or naught, miscarry, die, Colloq fizzle (out),
flop: The deal to buy the company fell through. 21 fall to.
start, begin, commence, set or go about, get under way,
undertake, tackle, take on; get moving, attack, Colloq get the
show on the road, get cracking, US get a wiggle on, move it:
The washing-up had to be done so I fell to.
--n. 22 drop, descent, dive, nosedive, plunge, tumble,
dropping, falling: How could he have survived a fall from such
a height? 23 Chiefly US and Canadian autumn: They turn the
clocks back one hour in the fall. 24 decline, decay, collapse,
downfall, failure, destruction, ruin, failure, deterioration,
eclipse: Have you read Poe's classic Fall of the House of Usher
? 25 Usually, falls. cascade, cataract, waterfall; rapids: How
many falls are there along the Limpopo River? 26 depreciation,
sinking, diminution, decrease, decline, lapse, downturn,
down-swing, drop, drop-off, lowering, abatement, slump,
collapse: On the Stock Exchange today, investors experienced
sharp falls in share prices. 27 slope, declivity, descent,
decline, drop, downhill, Chiefly US and Canadian downgrade:
Note the smooth rise and fall of the land. 28 surrender,
capitulation, submission, taking, seizure, capture, overthrow,
defeat, conquest, downfall: The fall of Khartoum in 1898 marked
the re-establishment of British rule in the Anglo-Egyptian
Sudan.
fallacy n. misconception, miscalculation, misjudgement, mistake, error,
non sequitur, solecism, delusion; paralogism; sophism: It is a
fallacy to think that you could ever learn to play the violin as
well as Susannah.