推測が間違っていなければ彼は40歳だ。

Sentence Analyzer

推測 間違っていなければ

English Translation

Unless I miss my guess, he is forty.

Furigana

推測(すいそく)間違(まちが)っていなければ(かれ)は40(さい)だ。

Romanji

Suisoku ga machigatteinakereba kare wa yon zero sai da.

Words

推測 (すいそく)
guess; conjecture
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
間違う (まちがう)
to make a mistake; to be incorrect; to be mistaken
(かれ)
he; him; his; boyfriend
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
(し、よん、よ)
four
(まる)
circle (sometimes used for zero); 'correct' (when marking); symbol used as a placeholder (either because a number of other words could be used in that position, or because of censorship); period; full stop; maru mark; semivoiced sound; p-sound
(さい)
-years-old; ability; gift; talent; aptitude; genius
()
be; is; indicates past or completed action; indicates light imperative

Kanji

Readings: スイ、 お.す
Meanings: conjecture, infer, guess, suppose, support, push (for)
Readings: ソク、 はか.る
Meanings: fathom, plan, scheme, measure
Readings: カン、 ケン、 あいだ、 ま、 あい
Meanings: interval, space
Readings: イ、 ちが.う、 ちが.い、 ちが.える、 -ちが.える、 たが.う、 たが.える
Meanings: difference, differ
Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: サイ、 セイ、 とし、 とせ、 よわい
Meanings: year-end, age, occasion, opportunity