30 entries under fall topic. ×

13
sink(noun, drop, area, decline)
10
dip(noun, drop, area, decline)
10
hollow(noun, drop, area, decline)
9
depression(noun, drop, area, decline)
7
hole(noun, drop, area, decline)
6
concavity(noun, drop, area, decline)
5
sag(noun, drop, area, decline)
5
sinkhole(noun, drop, area, decline)
3
sinkage(noun, drop, area, decline)
2
sinking(drop, decline, slump)
2
slip(drop, decline, slump)
0
cant(drop, decline, slump)
0
decline(drop, slump)
0
depression decline
0
distortion(drop, decline, slump)
0
downslide(drop, decline, slump)
0
downswing(drop, decline, slump)
0
downtrend(noun, drop, decline, slump)
0
downturn(drop, decline, slump)
0
droop(drop, decline, slump)
<12>
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APASmart Define. (2016). basin thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/basin/thesaurus/synonyms
ChicagoSmart Define. 2016. "basin thesaurus" https://smartdefine.org/basin/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, basin thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/basin/thesaurus/synonyms>.
MLASmart Define. "basin thesaurus" 22 March 2016. Web. 22 September 2026. <https://smartdefine.org/basin/thesaurus/synonyms>