1. The sun doesn’t rise until after dawn.

(dawn = the time just before the sun comes up; the light that appears before the sun rises)

dawn

 2. It’s still light outside until dusk.

(dusk = the time after the sun goes down; the light in the sky before the darkness, before the moon and the stars come out.)

dusk

 3. He can’t wait until winter.

(can’t wait: to look foward to something; to be happy about a future event)

winter

 4. They can’t wait until summer.

boy and girl

 5. She won’t leave work today until 6:30 p.m.

woman working
 6. He probably wont start walking until the age of one. baby
 7. Fire escapes weren’t put on buildings until the end of the 19th century. fire escape
 8. Most Americans felt safe living in the United States until September 11, 2001. world trade center

 9. He usually waits until he gets to work to have a cup of coffee.

(In this sentence, "until" is used as a conjunction joining two clauses.)

coffee