The word is contain.
contain
cardigan
Chinos or a chemise
An ingot is hard. It begins with the letters in.
action
The answer to the riddle is "Mailbox." It starts with the letter 'M,' ends with 'X,' and can contain an endless number of letters (as in mail) inside it.
something famas about it that has the letters in North Carolina
repugnance
Something that belongs to a teenager that starts with M and sea related is: Moter Boat and Muffdiving equipment.
bamboozle
E. coli
The most important thing that you should have inside the bathroom that starts with letter "A" is "ALCOHOL" or "ALCOGEL".