noun

protocol

/ˈproʊtəkɔːl/ · say it: PROH·tuh·kawl

an agreed set of rules for transmitting data

In Technology & Computing

In more detail

1. (noun) a set of official rules or procedures that must be followed in a particular situation

2. (noun) a plan or set of steps for conducting a scientific experiment or medical treatment

3. (noun) in computing, a system of rules for exchanging information between computers

Examples

1. The ambassador followed diplomatic protocol when meeting the foreign minister.
2. The research protocol required all participants to complete three sessions.
3. HTTP is the protocol used for transferring web pages on the internet.

How to use protocol

Protocol refers to an established set of procedures or rules designed to ensure consistency and formality in professional, scientific, or technical contexts. It differs from 'procedure' by emphasizing official or standardized requirements rather than general steps, and is common in diplomacy, medicine, computing, and research where precision and adherence to standards matter.

Common phrases

follow protocol
breach protocol
diplomatic protocol
experimental protocol
network protocol

Synonyms

procedure · agreement · code of conduct · guidelines · standard

Word family

protocols (plural) · protocol-based (adjective)

A common mistake

Learners sometimes use 'protocol' too casually for any routine procedure; it is best reserved for formal, official, or technical procedures where strict adherence is important.

Learn it for good

Save this word in WordVale and it comes back for review right before you'd forget it — with pronunciation, real examples, and optional translations. One purchase, no subscription.

Get WordValeFREE 7-DAY TRIAL · iPHONE & iPAD