identical  adj.

exactly the same

Mark and John were identical twins separated at birth.

occur (-red)  verb

to happen

The wind storm occurred sometime during the night.

immigrant

a person who moves from one country to another

Thousands of immigrants came from Europe to the United States during the early 20th century.

couple noun

two of something

Mr. and Mrs. Jones like to bowl. The couple goes bowling every week.

Tina bought a couple of apples at the store.

secure  adj.

safe

Homeless people do not feel secure when they sleep on the streets.

finally  adv.

at last, at the end

Chris studied the new vocabulary for many hours and finally learned all of the words.