apropos   (Sound)

The apropos has 3 Senses.

• seasonably, apropos, timely, well-timed
• at an opportune time; "your letter arrived apropos"
• 好都合な時に

• incidentally, apropos, by the bye, by the way
• ついでながら, ところで, ちなみに
• introducing a different topic; in point of fact; "incidentally, I won't go to the party"
• 異なる話題を導入すること

• apropos
• of an appropriate or pertinent nature
• 適切またはしっくりとした性質の