Definitions

1. noun

the middle of the day, especially the hour between 11 am and 1 pm

“She took a break at noontime to grab a sandwich from the cafeteria.”

2. noun

the time of day when the sun is at its highest

“The picnic was scheduled for noontime to take advantage of the warmest part of the day.”

3. noun

a time for a meal, especially lunch

“The noontime meal was served in the school cafeteria.”