See it in a sentence
“Researchers followed a strict data-collection protocol.”
Learn it well
Teacher tip
High-value academic, health, and workplace vocabulary.
Common mistake
Protocol is countable when referring to a specific set of rules.
Learn this word
protocol
TBC
CEFR C1IELTS 7.0+nounDifficulty 4/5
Definition
An official set of rules or procedures for a process or situation.
In simple English
An official procedure.