Amount (3)
'amount' is the definition.
(synonyms)
This is all the clue.
(Other definitions for quantity that I've seen before include "Volume" , "Helping" , "Person who costs construction work" , "Amount or number" .)
'amount' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for sum that I've seen before include "Whole" , "Mathematical problem" , "Add together" , "Aggregate, total" , "All one has" .)
'amount' is the definition.
(quota is a kind of amount)
This is all the clue.
(Other definitions for quota that I've seen before include "certain allowance" , "Proportional share" , "Share, allowance" , "Apportionment" , "Entitlement" .)