Meaning & use
algae
Simple, mostly aquatic organisms that use photosynthesis, ranging from single-celled forms to large seaweeds.
See it in a sentence
Green algae covered the surface of the pond after weeks of warm weather.
Scientists are studying algae as a possible renewable source of biofuel.
A note on using this word
Algae is technically the plural of alga, but it is commonly used as a mass noun in everyday and scientific speech, as in the algae is spreading.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
Write a sentence using “algae”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.