Fastball (noun)

1. A type of pitch in baseball that is thrown with maximum velocity.
2. A pitch that is thrown hard and straight.

Origin:

Compound word of fast + ball, meaning "a fast-moving ball".

Examples:

1. The pitcher threw a fastball that clocked in at 96 miles per hour.
2. He was able to hit the fastball with ease.
3. The pitcher's best pitch was his fastball.
4. The fastball was thrown with such force that it broke the catcher's mitt.
5. The fastball was thrown with such accuracy that it was impossible to hit.