を
Direct-object particlemachine translation
FormationNoun + を + Verb
を marks the direct object — the thing or matter the verb acts on: パンを食べます (eat bread), 本を読みます (read a book).
を serves only a grammatical role and is pronounced お. The character を does not appear in ordinary vocabulary — whenever you see を, you know a verb is coming.
Note: some Japanese verbs do not take を even though their Vietnamese translation sounds like it has an object. For example, 会います (to meet) takes に (友達に会います), and 好きです (to like) takes が.
Examples
毎日コーヒーを飲みます。
I drink coffee every day.
昨日映画を見ました。
I watched a movie yesterday.
手紙を書きました。
I wrote a letter.