ripen

verb

rip·​en ˈrī-pən 

ˈrī-pᵊm

ripened; ripening ˈrī-pə-niŋ 

ˈrīp-niŋ

intransitive verb

: to grow or become ripe

fruits ripening on the tree

transitive verb

1

: to make ripe

You can ripen fruit faster by putting it in a paper bag.

2

a

: to bring to completeness or perfection

… the progress of time would rather increase and ripen their prosperity …

—Nathaniel Hawthorne

b

: to age or cure (cheese) to develop characteristic flavor, odor, body, texture, and color

c

: to improve flavor and tenderness of (beef or game) by aging under refrigeration

ripener

ˈrī-pə-nər 

ˈrīp-nər

noun

Synonyms of ripen

• grow
• progress

Examples of ripen in a Sentence

The tomatoes finished ripening on the windowsill.

You can ripen the fruit by placing it in a paper bag and storing it at room temperature for a few days.

Recent Examples on the Web

Furthermore, the National Onion Association advises against storing onions with potatoes (onions emit ethylene gas, which will cause potatoes to ripen) or other produce that releases moisture and storing them in plastic bags. — Jill Schildhouse, Southern Living, 4 July 2026

The Algonquin people also called it the Raspberry moon, evoking the fruit that ripens around that time in North America, while the Cree knew it as the Feather Moulting Moon, according to the Old Farmer's Almanac. — Anthony Wood, Space.com, 2 July 2026

Unlike Napa's warmer northern appellations, Frank Family's Chardonnay program is anchored in the cool-climate Carneros AVA, where fog from San Pablo Bay slows ripening and helps grapes retain bright natural acidity. — Emily Price, Forbes.com, 30 June 2026

Remember that while a cantaloupe does continue to ripen after it’s harvested, the actual sugar content won’t change. — Alexandra Frost, USA Today, 29 June 2026

Word History

First Known Use

15th century, in the meaning defined at intransitive sense

Kids Definition

ripen

verb

rip·​en ˈrī-pən 

ripened; ripening ˈrīp-(ə-)niŋ 

: to make or become ripe