teens (n.)

• boxcar
• boxcars
• dozen
• eighty
• eleven
• fifteen
• fifty
• fortnight
• forty
• fourscore
• fourteen
• ninety
• nonagenarian
• octogenarian
• score
• septuagenarian
• seventy
• sexagenarian
• sixteen
• sixty
• thirteen
• threescore
• twelve
• twenty
• twenty-five
• twenty-four