Englishfor English speakers
activity
Noun
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When a person or animal has activity, it is active or lively.
The sleeping dog did not show much activity.
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When you have a function to do, you have an activity.
The child has many after-school activities.
She participates in women's rights activities.
evaluation
Noun
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Evaluation is the process of making a judgement.
If a teacher doesn't know the student well, it makes the evaluation of the student's level very difficult.
After the problem was found, we began an internal evaluation of the management.
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An evaluation is a judgement.
Lamont Library’s 24-hour service received a positive evaluation this past spring.
officer
Noun
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An officer is a person in an army who has much authority. A general and a captain are two types of officers.
A soldier must obey his commanding officer.
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An officer is a policeman, often called a "police officer." (Note, "officer" is often better than "policeman" because the officer could be a woman or a man.)
Officer, can you help me, I've been robbed.
The thief was taken to jail by the officers.
He was arrested for hitting an officer.
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An officer is someone who holds office (meaning, has authority).
The judge is an important officer of the court.
She is the chief executive officer, or CEO, for our company.