Englishfor English speakers
breakup
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noun
(= dissolution)
the termination or disintegration of a relationship (between persons or nations)
—
noun
(= separation)
coming apart
of
Preposition
—
Made using.
It is a house of cards.
catalyst
Noun
—
A substance that makes a chemical reaction happen faster. The catalyst is not changed by the process and can be used again.
—
A catalytic converter.
—
Someone or something that encourages progress or change, or helps it happen.
I hope the new CEO will be a catalyst for change.
Communication is a catalyst for peace.