______ means fear

____ means throw

____ means time

____ means foot

​ (a)   is to cause something to happen at the same time.

• synchronize
• claustrophobic
• projectile
• centipede

An object thrown with great force is ​​​ (a)   .

• projectile
• hydrophobia
• chronic
• pedestrian

Excessive fear of heights, climbing ladders, and other tall places is called ​ (a)   .

• acrophobia
• pedal
• chronological
• claustrophobia
• ejected

A ​ (a)   is someone who walks across the street on foot.

• pedestrian
• centipeded
• centipede
• chronometer
• rejects

One instrument used to measure time is a ​ (a)   .

• chronometer
• pedal
• projector
• projectile

A machine that throws an image onto a wall is a ​ (a)   .

• projector
• chronometer
• pedestrian
• arachnophobia