I saw a flock of echo parakeets flying in the sky.

The ecol. movement is gaining momentum worldwide.

She is studying ecol. at university.

The econ class was really interesting.

I am studying econ in college.

The deep ecologist believes in the intrinsic value of nature and advocates for its protection.

Eccentric abstraction is a style of art that emphasizes the unconventional and non-representational.

The country has a mixed economic system, combining elements of both capitalism and socialism.

I love the sound of the echo plate in this recording.

The quaternary sector of the economy is focused on knowledge-based activities.