50 entries under upend topic. ×

1
down(verb, upset, drop, slip, reverse)
1
flip over(verb, expression, upset, reverse, annul)
1
invalidate(verb, upset, reverse, annul, void)
1
invert(verb, upset, change, disturb, turn)
1
jumble(verb, drop, change, disturb, slip)
1
knock down(verb, expression, upset, drop, fall)
1
knock over(verb, expression, upset, drop, disturb)
1
mess up(verb, expression, drop, change, disturb)
1
mix up(verb, expression, change, disturb, turn)
1
nullify(verb, upset, reverse, annul, void)
1
overbalance(verb, upset, fall, collapse, reverse)
1
prostrate(verb, upset, reverse, annul, void)
1
put out of order(verb, expression, idiom, change, disturb)
1
repeal(verb, upset, reverse, annul, void)
1
rescind(verb, upset, reverse, annul, void)
1
reverse(verb, upset, change, disturb, turn)
1
roll(verb, upset, drop, slip, reverse)
1
rummage(verb, change, disturb, turn, spoil)
1
set aside(verb, expression, upset, reverse, annul)
1
spill(verb, upset, drop, change, disturb)
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APASmart Define. (2015). keel over thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/keel_over/thesaurus/synonyms
ChicagoSmart Define. 2015. "keel over thesaurus" https://smartdefine.org/keel_over/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, keel over thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/keel_over/thesaurus/synonyms>.
MLASmart Define. "keel over thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/keel_over/thesaurus/synonyms>