IPA: /ɪnˈsɪstəns/
KK: /ɪnˈsɪstəns/
A strong and firm demand for something, often repeated or emphasized.
Her insistence on finishing the project by Friday motivated the team to work harder.
Insistence is formed from "in-" (meaning not or into) and "sistere" (meaning to stand). The word describes the act of standing firm or not backing down, emphasizing a strong demand or assertion.
Think of someone who is 'standing firm' ('sistere') in their position, which helps you remember that 'insistence' means a strong demand or assertion.