adhere
/ædˈhiɹ/verb
To follow a rule, plan, or belief closely and without changing it.
Example sentences
- “All staff must adhere to the safety guidelines.”
- “She adheres to a strict vegan diet.”
- “The airline failed to adhere to its own refund policy.”
Almost always followed by 'to': adhere to the rules, a schedule, a diet. It is formal; in casual speech people say 'stick to' or 'follow'.