Cool MateFeed vs Sustain
When to use each in English, with meaning, register, and examples.
| Feed | Sustain | |
|---|---|---|
| Meaning | To give food to someone or something. | To keep something going or maintain it. |
| CEFR level | A2 | C1 |
| Part of speech | verb | verb |
| Usage notes | Commonly used when talking about giving food to animals or children. Not usually used in formal contexts. Avoid using it in contexts where you mean 'nourish' in a more abstract sense. | Use 'sustain' in contexts about keeping something alive or supporting it over time. It can be formal when discussing topics like environmental issues or less formal in conversations about personal interests. |
Frequently asked questions: Feed vs Sustain
What's the difference between "Feed" and "Sustain"?
"Feed" means: To give food to someone or something. "Sustain" means: To keep something going or maintain it.
When should I use "Feed" and "Sustain"?
They can all be used in everyday English.
Are "Feed" and "Sustain" the same CEFR level?
"Feed" is at A2, "Sustain" is at C1 on the CEFR scale.