Common Gmail filters

gmail filters

Search mails for all Meeting/calendar related messages inside inbox
invite.ics in:inbox

Search mails for all Meeting/calendar related messages without Replies or Forwards
invite.ics -subject:”re:||Fwd:”

Search emails larger than 10MB
Larger:10M

Search emails older than 2 years
older_than:2y
(use “m” for months and “d” for days)

Search emails in the last 30 days or newer than 1 month|
newer_than:1m
(use “m” for months and “d” for days)

Search a word exactly matches the result:
use a plus sign like +universe
If you want to search emails with a word exactly matching universe. Try searching +universe. You will not get results for “universes” or “universal“.

A detailed list of Gmail filters is available here https://support.google.com/mail/answer/7190?hl=en