彼は心臓外科の第一人者だ。

Sentence Analyzer

彼は心臓外科の第一人者だ。

English Translation

He is the foremost authority on heart surgery.

Furigana

彼(かれ)は心臓(しんぞう)外科(げか)の第一人者(だいいちにんしゃ)だ。

Romanji

Kare wa shinzō geka no daiichininsha da.

Words

彼 (かれ)

he; him; his; boyfriend

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

心臓 (しんぞう)

heart; guts; nerve; cheek; gall; spine; central part

外科 (げか)

surgery; department of surgery (hospital, etc.)

の (の)

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

第一人者 (だいいちにんしゃ)

leading person

だ (だ)

be; is; indicates past or completed action; indicates light imperative