turn upon (0 synonym found)
Definition of turn upon:

(v) : (transitive) Alternative form of turn on (“aim at; rebel against; attack suddenly”). [(transitive) To set a flow of fluid or gas running by rotating a tap or valve.]
Definition of turn upon:

(v) : (transitive) Alternative form of turn on (“aim at; rebel against; attack suddenly”). [(transitive) To set a flow of fluid or gas running by rotating a tap or valve.]
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