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

あのー、先生?黒板に書いてあるの、指数関数じゃなくて三角関数ですけど・・・。

Sentence Analyzer

あのー 先生 黒板 書いてある 指数 関数 じゃなくて 三角 関数 です けど

English Translation

Er, Sir? What's written on the blackboard isn't an exponential function but a trigonometric one ...

Furigana

あのー、先生(せんせい)黒板(こくばん)()いてあるの、指数(しすう)関数(かんすう)じゃなくて三角(さんかく)関数(かんすう)ですけど・・・。

Romanji

Ano-, sensei? kokuban ni kaitearu no, shisū kansū janakute sankaku kansū desu kedo.

Words

あのう (あのう、あの、あのー)
say; well; errr ...
先生 (せんせい、せんじょう)
teacher; master; doctor; with names of teachers, etc. as an honorific; previous existence
黒板 (こくばん)
blackboard
()
at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
書く (かく)
to write; to compose; to pen; to draw; to paint
()
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
指数 (しすう)
index; index number; exponent (e.g. in floating-point representation); characteristic
関数 (かんすう)
function (e.g. math, programming, programing)
じゃあ (じゃあ、じゃ)
then; well; so; well then; combination of 'de' and 'wa' particles; plain copula
三角 (さんかく)
triangle; triangular
です (です)
be; is
けど (けど、けれども、けれど、けども、けんど)
but; however; although
(なかぽち)
middle dot (typographical symbol used between parallel terms, names in katakana, etc.); full-stop mark at mid-character height; interpoint (interword separation)

Kanji

Readings: セン、 さき、 ま.ず
Meanings: before, ahead, previous, future, precedence
Readings: セイ、 ショウ、 い.きる、 い.かす、 い.ける、 う.まれる、 うま.れる、 う.まれ、 うまれ、 う.む、 お.う、 は.える、 は.やす、 き、 なま、 なま-、 な.る、 な.す、 む.す、 -う
Meanings: life, genuine, birth
Readings: コク、 くろ、 くろ.ずむ、 くろ.い
Meaning: black
Readings: ハン、 バン、 いた
Meanings: plank, board, plate, stage
Readings: ショ、 か.く、 -が.き、 -がき
Meaning: write
Readings: シ、 ゆび、 さ.す、 -さ.し
Meanings: finger, point to, indicate, put into, play (chess), measure (ruler)
Readings: スウ、 ス、 サク、 ソク、 シュ、 かず、 かぞ.える、 しばしば、 せ.める、 わずらわ.しい
Meanings: number, strength, fate, law, figures
Readings: カン、 せき、 -ぜき、 かか.わる、 からくり、 かんぬき
Meanings: connection, barrier, gateway, involve, concerning
Readings: サン、 ゾウ、 み、 み.つ、 みっ.つ
Meaning: three
Readings: カク、 かど、 つの
Meanings: angle, corner, square, horn, antlers