Ancillary: meaning, definitions and examples

Use in formal or technical contexts to describe something that provides necessary support to a primary function or activity.

• The company offers ancillary services like technical support and training
• The main hospital is well-equipped, with several ancillary facilities, including a laboratory and a radiology unit

Used to describe something that provides assistance or reinforcement, often in contexts like roles, structures, or arguments. It implies a role that helps achieve a larger goal.

• She won the award for best supporting actress in a drama series
• The supporting evidence was crucial in winning the case

Often used to describe something of less importance compared to something considered primary. It can refer to rank, timing, or importance.

• Her secondary responsibilities include managing the office supplies
• The movie highlights the secondary characters just as much as the main ones

Typically used in formal or technical contexts, often related to machinery, staff, or emergency backup. It suggests something that helps or supports but is not the main component.

• The ship was equipped with an auxiliary engine in case of main engine failure
• The school has auxiliary staff members for special needs education