Definitions

1. verb

to take on a task or responsibility; to begin or start something

“She undertook the project with great enthusiasm.”

2. verb

to engage oneself in a particular activity or profession

“He undertook a new career in medicine.”

3. noun

a task or undertaking, especially a large or difficult one

“The undertaking of the project was a significant challenge.”

4. noun

a person who undertakes a task or venture

“He was the principal undertaking behind the new business venture.”