Underpin

Pronunciation ,

• UK IPA: /ˌʌn.dəˈpɪn/
• US IPA: /ˌʌn.dɚˈpɪn/, /ˈʌn.dɚˌpɪn/

Origin

- + pin.

Full definition of underpin

Verb

1. (transitive) To support from below with props or masonry.You should underpin the mine roof to prevent further collapse.
2. (transitive, figuratively) To give support to; to corroborate.Public confidence in politicians must underpin our democracy.