teens /tiːnz/ noun[plural only]4 •The numbers between thirteen and nineteen (inclusive).The number of people at the meeting was in the teens. •The time of life between thirteen and nineteen years old; the teenage years.She is in her teens. •The range between 10 and 19.Although it was a scorching desert by day, temperatures could drop as low as the teens at night. •The second decade of a century: the 1910s, 2010s, etc. The oneties, the tens.I was so excited for the teens to be over but then we get to the twenties and suddenly it's a pandemic!
