We're paying for the computer by monthly instalments.
We sometimes act on instinct.
Marriage became an institution in ancient societies.
The doctor's instructions must be carried out strictly.
The dentist picked away several instruments.
Please handle this precision instrument carefully.
His father was instrumental in getting him the job.
Her family insulates her from contacting the world.
Stop all these insults.
The insurance company is responsible for this case.
She received $2000 insurance.
I insure that you will succeed.
Insure your baggage before you leave home.
The castle has remained intact over the centuries.
What is your daily intake of calories?
Steel is an integral part of a modern skyscraper.
Many suggestions are needed to integrate the plan.
Roman walls may still be seen but not in their integrity.
She is a girl of intellect.
We need some highly qualified intellectuals.