となる (I. 511)

Example sentences

(ks). 
吉田さんが初代の委員長となった
Mr. Yoshida has become the first committee chairman.
(a). 
その土地は結局国の所有物となった
That land eventually become state property.
(b). 
戦後義務教育は九年間となった
After the war, (the period of) compulsory education was changed to (literally: became) nine years.
(c). 
彼らの結婚は悲劇的な結果となった
Their marriage ended in tragedy (literally: became a tragic result).
(d). 
彼は証拠不十分で無罪となった
For lack of evidence, he was found (literally: became) innocent.
(e). 
その試合は雨のため中止となった
The game was cancelled (literally: became a cancellation) due to rain.

Formation

Nounとなる
必修科目となるBecome a compulsory subject