Hi
It is also a surname. So if you knew Annie Lennox and Fred Lennox, then you would know two Lennoxes
The usual rule in English is to put an "e" before the "s" if the word itself ends in "s" or "x"
Ordinary use:I know two Smiths and I own two cats
However..
I know two Lennoxes
Off the coast, we saw two octupuses
As a book editor, he h