'Boil down' and 'boil over' are examples of phrasal verbs that can be confusing. We have explained the meanings and usage of these phrasal verbs below.
To 'boil down' is to reduce the amount of liquid by boiling.
'Boils down to' is a way of saying the most important thing.
"It all boils down to money."
"It all boils down to how prepared you are for the English test."
When the boiling liquid in a pan flows over the edge, it has 'boiled over'.
"Take the water off the heat before it boils over."
If a situation 'boils over', it gets out of control.
"The argument boiled over into a fight."
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