Englishfor English speakers
attend
Verb
—
If you attend something like school or a party, you go to it.
I attended a party.
My son will attend kindergarten next year.
—
If you attend to something, you give attention to it.
I attended my brother as best man at his wedding.
Will you please attend to this huge list of orders?
operation
Noun
—
An operation is a medical process, often opening the human body.
The doctors performed the operation in three hours.
—
An operation is an action of a group of people working for a goal (often military).
The Army operation was a success.
—
An operation is part or all of a business. small(often plural)/small
The company's East Coast operation was bigger than its West Coast operation.
—
An operation is a symbol that is used to perform a specific operation (addition, subtraction, multiplication or division) in maths.
The plus symbol is used to perform a specific operation in maths which is addition.