Definition

To provide support or a foundation for something, often in a way that makes it stronger or more effective.

Example

The new research will underpin the theory that climate change is accelerating.

Tense Forms

Conversation

I think we need to find ways to underpin our project with stronger research.

Absolutely! Without solid research, we won't have a solid foundation.

Exactly, and I believe it will also help us gain more support from our peers.

For sure! When we have good evidence, it really strengthens our proposal.

Synonyms & Antonyms

Root Explanation

Underpin → It is formed from "under" (from Old English "under", meaning beneath or below) and "pin" (from Old English "pinn", meaning a peg or support). The word "underpin" means to support from beneath, providing a foundation or reinforcement.

Memory Tip

Think of something being supported from 'beneath' ('under') by a 'peg' or 'support' ('pin') — that's why underpin means to provide support from below.

Visually Confused Words