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

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of contain.

"Such consistent regulations as “i before e except after c” and “if this is the beginning of the sentence, then there needs to be a capital letter” represent the rules that you invoke when you come across a pattern, such as a word containing the consecutive letters “e” and “i.”"

contained    containing    contains   

include    be   

content    containable    container    containment   

hold    restrain    confine    include    enclose    inhold   

Alane    Aquitaine    Ayn    Bahrain    Biscayne    Blaine    Cain    Chain    Champagne    Champaign   

unearth    laser-cooled    dot-and-dash    deaf-and-dumb    multicomponent    lych-gate    builders'    bystander    tarrying    arsenious