This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of ken.

v. Third-person singular simple present indicative form of ken.

"And yet, men have so behaved since the world began, feasting, fighting, and carousing, whether in the dark cave-mouth or by the fire of the squatting-place, in the palaces of imperial Rome and the rock strongholds of robber barons, or in the sky-aspiring hotels of modern times and in the boozing-kens of sailor-town."

multiplying glass   

organ    line    communication channel    channel    rosid dicot genus    electronic equipment   

polyscopic lens    dispersion lens    bull's-eye lens    burning-lens    field lens    oil-immersion    minus lens    apochromatic lens    bifocal lens    magnifying-lens   

lentil    lenticel    lenticule    contact lens    lenticular   

refractor    eyepiece    bull's-eye    objective    eyeglass    crystalline    glass    magnifier    meniscus    pantoscope   

Benz    Friends    Henze    bens    cheyennes    cleanse    contends    dens    friends    gens   

camera    mirror    sensor    screen    tube    disk    filter    glass    device    beam