Meaning & use
protocol
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Meanings
nouncountable or uncountable
An official set of rules for how formal events, meetings, or ceremonies should be conducted.
Grammar: Often used with the definite article: follow the protocol. Can be uncountable when referring to the system in general: diplomatic protocol.
Patterns
- follow protocol
- diplomatic protocol
- protocol requires something
The ambassador was briefed on diplomatic protocol before the state dinner.
Protocol requires that the guest of honor be seated to the host's right.
The company has a strict protocol for handling customer complaints.
nouncountablecomputing
A set of technical rules that control how computers or devices exchange information.
Grammar: Common in computing; often used with a name: the Internet Protocol, a secure protocol.
Patterns
- network protocol
- use a protocol
- protocol for something
The two systems couldn't communicate because they used different protocols.
HTTPS is a protocol that encrypts data between your browser and a website.
Engineers are developing a new protocol for faster file transfers.
nouncountabletechnicalspecialist
A formal agreement or record of a scientific experiment or medical treatment plan.
Grammar: Used in academic, medical, and legal contexts; often appears in the plural: the Kyoto Protocol, trial protocols.
Patterns
- research protocol
- treatment protocol
- sign a protocol
The study followed a strict protocol approved by the ethics committee.
Doctors adjusted the patient's treatment protocol after the first month.
The treaty was amended by a protocol signed in 2015.
Word forms
| plural | protocols |
|---|
Common combinations
- diplomatic protocol
- She studied diplomatic protocol before her posting to Paris.
- follow protocol
- Staff must follow protocol when dealing with confidential information.
- network protocol
- The network protocol determines how data packets are routed.
- protocol requires
- Protocol requires that all visitors sign in at the front desk.
- breach of protocol
- His refusal to shake hands was seen as a breach of protocol.
Synonyms and how they differ
- procedure
- Procedure is a general word for a series of steps; protocol is more formal and often official or diplomatic.
- etiquette
- Etiquette refers to social manners, while protocol is a stricter, often written set of rules for formal occasions.
- convention
- Convention can mean a custom or an agreement; protocol specifically suggests official rules or technical standards.
Word family
- protocol verb
- Rare; to record or issue something in a protocol (e.g., protocol a meeting).
Commonly confused: protocol or procedure?
protocol vs procedure
Procedure is any established way of doing something; protocol is more formal and often associated with diplomacy or technology.
Practice
The visiting president was greeted with full ______, including a military band and a red carpet.
Choose one answer.
Protocol fits because it refers to the official rules for formal ceremonies. Procedure is too general and often means a series of steps for a task; process and proceeding do not fit the context of ceremonial etiquette.
Make it your own
Write a sentence using “protocol”, then check it and compare it with the examples above.