Underpinning
/ˈʌndəˌrpɪnɪŋ/
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Definition
(verb) present participle and gerund of underpin
Sentence Examples
The underpinning of the structure had to be reinforced after the fire.
Honesty is the fundamental underpinning of a successful relationship.
CEFR Practice Quiz
The researcher discussed the theoretical ____ of his work and how it relates to several other studies today.