exercise
When referring to physical activity for health, 'exercise' is often used as an uncountable noun (e.g., "I need more exercise"). However, when referring to a specific task or a set of movements, it is a countable noun (e.g., "a breathing exercise"). As a verb, 'exercise' is very versatile. It can be used simply to mean working out, but in formal contexts, it often means putting a power or right into action, such as "exercising caution" or "exercising authority."
💬Casual Conversation
I'm losing it. Did you actually get any exercise today or just coffee?
Walking to the espresso machine counts as a workout when I'm this burnt out.
Meanings
Activity regularly performed to improve health and physical fitness.
"Regular exercise is essential for maintaining a healthy heart."
A task or activity performed to develop a skill or test knowledge.
"The teacher gave the students a grammar exercise to complete at home."
To use or apply a faculty, right, or power.
"The president decided to exercise his right to veto the bill."