What context can I use each word in?
Learn when and how to use these words with these examples!
auxiliary
Example
The auxiliary power generator kicked in when the main power source failed. [auxiliary: adjective]
Example
She works as an auxiliary nurse at the hospital, assisting the primary nursing staff. [auxiliary: noun]
supplementary
Example
The textbook includes supplementary exercises at the end of each chapter. [supplementary: adjective]
Example
The teacher handed out a supplementary handout with additional information for the students. [supplementary: noun]
Good things to know
Which word is more common?
Auxiliary is more commonly used than supplementary in everyday language. Auxiliary is versatile and can be used in various contexts, while supplementary is less common and is typically used in specific situations where additional support or information is needed.
What’s the difference in the tone of formality between auxiliary and supplementary?
While auxiliary is generally considered more formal, supplementary can be used in both formal and informal contexts. Supplementary is often used in educational or informational settings to describe additional materials or resources.