This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

理科

Reading

Kana: りか
Romaji: rika
Kana
Romaji

Definition

1

science

Kanji

Readings: リ、 ことわり
Meanings: logic, arrangement, reason, justice, truth
Reading: 
Meanings: department, course, section

Example Sentences

(わたし)理科(りか)数学(すうがく)両方(りょうほう)()きだ。
➥I like both science and math.
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彼女(かのじょ)理科(りか)勉強(べんきょう)しなければなりません。
➥She has to study science.
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クリスは理科(りか)授業(じゅぎょう)()ちこぼれそうです。
➥Chris risks falling behind in the science class.
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(かれ)理科(りか)を2科目(かもく)とらなければならない。
➥He has to take two science classes.
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トムは、理科(りか)ではクラスの(だれ)よりもできる。
➥Tom is better at science than anyone else in his class.
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あなたは理科系(りかけい)大学(だいがく)(すす)んだほうがいいよ。
➥You should go on to a technical college.
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