crash (verb, noun)

A car crash.

If something crashes into another thing, it means that it hits that thing, usually when it’s going fast.

• The car crashed into the wall.

A crash happens when two cars hit each other, or a plane hits the ground.

• There was a plane crash on the news last night.

A crash can also be a loud noise that something makes when it breaks.

• The glasses fell off the table with a crash.

If a computer or website crashes, it means that it stops working.

• I had to get a new computer after my old one crashed.

shy (adjective) 

Shy means ‘timid.’

• The little boy was shy on the first day of school.
• The shy woman spoke softly.

Shy also means ‘not having enough of something.’

• The charity was 20 percent shy of its fundraising goal.