How to Say "Jack" in Japanese

ジャック

jakku[d͡ʑa̠k̚kɯ̟]

The Japanese word for the English noun "jack" (a device for raising and supporting a heavy object) is ジャック (jakku).

ジャック can refer to a mechanical jack used to lift heavy objects. It is also the most straightforward and widely-used translation for the name "Jack".

Meaning: device for raising and supporting a heavy object (noun)

Which one should you use?

While ジャック is the standard way to write the name, ジャッキー serves as a friendly and informal way to refer to someone named Jack.

jakku

In Japanese, the word ジャック can be used as a verb meaning to hijack or take over something, such as a radio station or a social media account.
When referring to a 'car jack', Japanese speakers may use ジャッキ instead of ジャック to distinguish the tool from the name.
Japanese has a specific category of loanwords called 'Wasei-eigo', and the way ジャック is used to mean 'takeover' is a prime example of this Japanese-made English.

ジャックは英語を話す。
Jack speaks English.
This sentence is useful for seeing how to use ジャック as a subject.
Tatoeba #3360145 by arnab, translation #53130 by CN
私の名前はジャックです。
My name is Jack.
This sentence is useful for introducing yourself using ジャック.
Tatoeba #5050 by bunbuku, translation #1646 by CN
ジャックが頼りになるよ。
You can count on Jack.
This sentence is useful for expressing reliability regarding someone named ジャック.
Tatoeba #662307 by arihato, translation #53087 by CN
初めまして、ジャックさん。
Nice to meet you, Jack.
40 more sentences on Tatoeba

A man is trying to change a tire on his car.

健太 Kenta

ジャックはどこにある？
Jakku wa doko ni aru?
Where is the jack?
美咲 Misaki

車のトランクにジャックがあるよ。
Kuruma no toranku ni jakku ga aru yo.
There is a jack in the car trunk.
健太 Kenta

これを使って車を上げるね。
Kore o tsukatte kuruma o ageru ne.
I will use this to lift the car.
美咲 Misaki

健太君、気をつけてね。
Kenta-kun, ki o tsukete ne.
Kenta, be careful.

Sources

⭐Share⭐ to appreciate human effort 🙏