Verify

(verify) is handy for assertions that you aren't sure about, such as usually/always distinctions, or just things you got from a non-authoritative source but that's probably right, is a decently educated guess, or such.

It's meant to avoid readers from trusting wrong information, and to avoid writers from omitting things they're not entirely sure about.

In case you like polishing up information: These pages have this marker.

See also Help:Editing.