Dry (8)
'dry' is the definition.
(similar in meaning)
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(Other definitions for arid that I've seen before include "Very dry; uninteresting" , "Rainless (region)" , "flat" , "(Of land) very dry" , "(Of climate) dry" .)
'dry' is the definition.
(dehydrating is a kind of drying)
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(Other definitions for dehydrate that I've seen before include "Remove moisture content from, dry out" , "Drain" , "Preserve by removing all liquid from" , "Remove moisture from, make dry" , "Lose a lot of water" .)
'dry' is the definition.
(similar in meaning)
This is all the clue.
(Another definition for waterless that I've seen is " Arid".)
'dry' is the definition.
(parching is a kind of drying)
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(Other definitions for parch that I've seen before include "Make hot and dry" , "Make dry through heat" , "Get overheated" , "Dehydrate" , "Cut off water supply" .)
'dry' is the definition.
(synonyms)
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(Other definitions for teetotal that I've seen before include "Abstinent from alcohol" , "avoiding any possibility of inebriation" , "drunk? No way" , "Sworn off alcohol" , "Avoiding alcohol" .)
'dry' is the definition.
('dry' in French - used for wine)
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(Other definitions for sec that I've seen before include "very short space of time" , "(Of wines) dry" , "Mo or min?" , "21 down, as wine" , "period not lasting long" .)