4649

Japanese

Etymology

The digits can be read as yon-roku-shi-ku, which is similar to よろしく (yoroshiku, “pleased to meet you; regards”).

Usage notes

In Japanese, 四 (the number 4) can be read as either "shi" or "yo/yon", depending on the context. It is a bit unusual to use both readings in a single sentence and, unless you are simply counting, they are not interchangeable. Compare 四時 (yoji, not shiji; "four o'clock"), but 四月 ["fourth month", i.e. April] is always read shigatsu, never yogatsu.

Interjection

４６４９(よろしく) • (yoroshiku) 

1. pleased to meet you; let's get along well
   • 2005, 七瀬晶 Nanase Hikaru, Project SEVEN, p12

     『今(こん)回(かい)も4(よ)6(ろ)4(し)9(く)！　数(すう)学(がく)はないの？』

     “Konkai mo yoroshiku ! Sūgaku wa nai no?”

     (please add an English translation of this example)