光学の研究で彼は拡大鏡の発明をした。

Sentence Analyzer

光学の研究で彼は拡大鏡の発明をした。

English Translation

His study of optics led him to the invention of the magnifying glass.

Furigana

光学(こうがく)の研究(けんきゅう)で彼(かれ)は拡大鏡(かくだいきょう)の発明(はつめい)をした。

Romanji

Kōgaku no kenkyū de kare wa kakudaikyō no hatsumei o shita.

Words

光学 (こうがく)

optics

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

研究 (けんきゅう)

study; research; investigation

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

彼 (かれ)

he; him; his; boyfriend

は (は)

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

拡大鏡 (かくだいきょう)

magnifying glass; loupe

発明 (はつめい)

invention; intelligent; clever; being enlightened; having the meaning of everything become clear

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

為る (する)

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to