Is the sentence "children under 8 years old" means 0-8 or 0-7? as I understand, less than 8 does not include 8. How about "under"? I just think about "under" as similar as "less" so I just think it does not include 8. But an activity marked as "children under 8 years old cannot participate in this..." does not sell a ticket for 8. So I wonder about it.

  • 1
    If I said Pick any single-digit number under 8, would you seriously consider choosing 8? Go check a dictionary. Commented Jun 14, 2018 at 15:33
  • Related question ell.stackexchange.com/q/136949/9161
    – ColleenV
    Commented Jun 14, 2018 at 16:01
  • 2
    @FumbleFingers - Given that (a) the OP has already explained in an earlier question that their native language uses different words for 'greater than or equal to' and 'greater than'; (b) the OP has already postulated a hunch that the expression "under 8" would not include 8-year-olds, and (c) a dictionary may list upwards of almost 20 definitions for the preposition under, I think this question seems legit, while your comment seems a bit condescending and insensitive toward our target audience.
    – J.R.
    Commented Jun 14, 2018 at 17:54
  • 2
    The usual phrase used in North America is "children aged eight and under." The "and" makes it explicit that eight-year-olds are included. Commented Jun 15, 2018 at 1:40
  • Thanks for all comments and answers. Anyway, I am still a learner, maybe till end of my life, and I just want to make sure my understating. I am happy with every single sentences in the answers and comments.
    – sio4
    Commented Jun 28, 2018 at 9:15

3 Answers 3


Under means less than so, technically, an 8-year-old should not be participating in an "Under 8" activity.

If you were running such an activity, and wanted 8-year-olds to be included, you could either say, "Under 9", or "Through age 8". ("Up to age 8" is another valid way to say it.)

  • In addition to J.R.'s response; the school sports teams I am familiar with would set a certain date on which all team members had to be below a certain age - although they were permitted to continue playing for the team even if they reached that age before the end of the season. Commented Jun 14, 2018 at 14:55

It technically would exclude eight-year-olds, but it's often used to include eight-year-olds. To avoid ambiguity, you should use a different term, such as "eight and under".



7("Under 8" stars here by including "7" and all the numbers below)





You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .