plural n. 1 a cardinal number; 10 times 3; 2 a symbol for this number as 30 or XXX. 3 a set of this many persons or things.
His friends are all in their thirties.
His friends are all in their thirties.
Hear it
cardinal number; 10times 3;30;XXX
Letter A
2 syllables
thir-ties
VocabClass lessons are designed to engage students, improve motivation in learning the subject matter, and generate better results. Long-term retention is our focus and by making the learning process fun, our gamified approach has a positive impact on this goal.
View all games!
Try it! FREE!