Œcology is the study of the relationships between organisms and their environment.

The company is committed to adopting œcological practices to reduce its carbon footprint.

He was known as an œcologist in his time.

The company experienced œconomic growth last year.

Ecologists study the relationships between organisms and their environment.

He was known as an œconomist in his time.

There are many economists who study the global economy.

Œcumenism is the movement towards greater unity among different Christian traditions.

He managed to run his business œconomically.

He lives œcologically, using renewable energy and recycling.