Origin: Latin suffix -tion
Transaction has 2 different meanings across 1 category:
the act of transacting within or between groups (as carrying on commercial activities)
"no transactions are possible without him"
"he has always been honest is his dealings with me"
The act of conducting or carrying out (business, negotiations, plans).
"After months of difficult talks, they finally closed the transaction on the merger."
In plain English: A transaction is an exchange where two people trade something, like buying coffee with money.
"The bank took too long to process my transaction yesterday."
Usage: Use transaction to describe any formal exchange involving money or the completion of a business deal, such as a bank transfer. Avoid confusing it with mere communication; if no financial value changes hands, use "interaction" instead.
The word entered English via the Middle French term transaction, which itself came from the Old French transaccion. This phrase was derived from the Late Latin transactio, meaning "a thing done" or "an act of carrying across."