He accurately described what happened there.

He was accused of stealing the necklace.

You need to accustom yourself to the new environment.

I have a dull ache here.

His achievement in the field of science is remarkable.

I acknowledge that I made a mistake.

Your acknowledgment of your mistake is the first step towards improvement.

I bumped into an old acquaintance at the supermarket yesterday.

The company plans to acquire a new software to improve their system.

The soldier acted bravely.