Simple meaning
What does Sustain mean?
to keep something going over time.
Dictionary definition
To keep something going or support it over time.
Example sentences
Sustain in a sentence
easy
Our class discussed sustain during science time.
medium
The article used sustain to explain how people affect nature.
hard
Writers can use sustain to describe environmental ideas clearly and responsibly.
Synonyms
Words like Sustain
Antonyms
Opposite words
stopA helpful contrast in many contexts.
depleteAnother useful opposite or contrast.
Word family
Sustain word family
Base word
sustain
verb
sustains
Keeps going now or often.
adjective
sustainable
Able to continue over time.
Related words
Explore related words
Quick practice
Try Sustain
Practice 1
What does sustain mean?
SUSTAIN means to keep something going over time.
Practice this skill
Practice vocabulary in WordHive
Use the dictionary to understand Sustain, then move into short activities matched to the skills on this page.
Learning paths
- Define the Word Hive for word meanings.
- Synonym Search for word choice.
- Context Clue Challenge for sentence clues.
- Buzz Between for homophones and listening.
- Hive Builder for roots, prefixes, and suffixes.