Supplementary: meaning, definitions and examples

Used when something is meant to complete or enhance something else, often in an academic or formal context.

• The professor provided supplementary materials to help students understand the topic better
• The supplementary budget was approved to fund new projects

Used when something is added to what is already present, often in a neutral or generally applicable context.

• We need additional information before making a decision
• The company hired additional staff to handle the workload

Used when something is beyond the usual or necessary amount, often in informal or conversational settings.

• Do you have any extra pens I could borrow? He put in extra effort to finish the project early

Used when more of something is required or provided, often in the context of distance, time, or information.

• If you have any further questions, please contact us
• We need further evidence to support the claim

Use 'supplementary' when referring to something that serves as an extra or addition to the main part, often in a supportive role.

• The teacher provided supplementary materials to help us understand the lesson.
• She took supplementary vitamins to improve her health.

Choose 'supplement' when referring to something that completes or enhances another thing when added to it.

• She takes a daily supplement to ensure she gets enough vitamins.
• The company offers a retirement plan supplement to its employees.

Choose 'addition' when talking about adding something as an integral part to make it more complete or larger.

• We are pleased with the new addition to our team.
• An extra room will be built as an addition to the house.

Select 'boost' to describe something that enhances or increases the effectiveness or strength of something else, often in a positive manner.

• The new marketing strategy gave a significant boost to our sales.
• He drank a coffee to get an energy boost.