Translation guide
The English word "function" can refer to a purpose, an event, a mathematical relationship, or a feature in programming. This guide covers how to express these meanings naturally in Japanese.
Expressing what something is for or what role it plays.
Refers to the function or capability of a machine, system, or software. Common in technical and everyday contexts.
This app has a search function.
Refers to the role or function of a person, organization, or thing within a system. Emphasizes the part played.
His function is to bring the team together.
Refers to the function or working of something, often in a more abstract or natural sense. Can be used for biological functions or the effect of something.
I learned about the function of the liver.
Refers to the use or application of something. More about what something is used for rather than its inherent capability.
What is the function of this tool?
Referring to a formal social event or gathering.
General term for a planned event or function, such as a school event or company ceremony.
I will attend the company function.
Refers to a ceremony or formal function, such as a wedding or graduation.
A gathering or meeting, often used in compound words like 歓迎会 (welcome party) or 送別会 (farewell party).
A relationship between sets where each input has a single output.
The standard mathematical term for a function. Used in all math contexts.
Please draw the graph of this function.
A reusable block of code that performs a specific task.
Same as mathematical function; used in programming for functions, methods, or subroutines.
This function returns a string.
Loanword from English, often used in IT contexts, especially when referring to specific named functions or keys.
機能 (kinō) is for the functional capability of an object or system (what it can do). 役割 (yakuwari) is for the role or function assigned to a person or thing within a larger context (the part it plays). Use 機能 for machines and software; use 役割 for people and organizational roles.
The loanword ファンクション is mainly used in specific IT contexts (e.g., function keys, function calls). For general purposes, use 機能 or other native terms.
I was invited to a wedding function.
We're holding a farewell function.
ファンクションキーを押してください。
Please press the function key.