その件については後で話しましょう。
Let's talk about that matter later.
Regarding the matter from the other day, have you been able to check it?
counter for received messages
Counter for received emails, text messages, voicemails, etc. Used with numbers to count incoming communications.
I received three emails yesterday.
There were two voicemail messages.
counter for online accounts
Counter for accounts on websites, email services, etc. Used when referring to the number of user accounts.
You can register up to three accounts on this service.
Five fraudulent accounts were found.
I'd like to talk a bit about the matter from yesterday.
I'll get back to you about that matter at a later date.
Three accidents occurred this month.
I have five unread emails.
件 written with the same kanji as くだり is usually read けん and means 'matter' or 'case', a different word entirely from 件(くだり) meaning a passage of text.
article; object; item · property; real estate; rental listing
number of cases; number of items; count
this matter; this case
another matter; separate case; different issue
business; errand; matter to attend to
subject; title · subject (of an email); subject line
filing a case; initiating prosecution
difficult case; hard case
conditioning
one matter; one item; one case
given conditions; postulate; data
aforementioned matter; previous item · antecedent
latter; following matter · consequent
several items; a number of cases
assorted matters; miscellaneous affairs
difficult matter; tough case
personnel expenses; labor costs · indirect labor costs
major incident; big scandal; major happening
minor incident; small affair; sideshow