| Class or kind | 13 |
| Class outing | 12 |
| Class outings | 13 |
| Class outline | 13 |
| Class paper | 11 |
| Class papers | 12 |
| Class period | 12 |
| Class photo arrays | 18 |
| Class pres. and others | 22 |
| Class president's term | 26 |
| Class presidential nominee in "Napoleon Dynamite" | 59 |
| Class project in a box | 22 |
| Class rank fig. | 15 |
| Class reminders | 15 |
| Class representatives? | 22 |
| Class requiring goggles | 23 |
| Class requiring little effort | 29 |
| Class reunion attendee | 22 |
| Class reunion attendee, briefly | 31 |
| Class reunion attendees | 23 |
| Class reunion attendees, for short | 34 |
| Class reunion attender | 22 |
| Class ring datum | 16 |
| Class ring inscription | 22 |
| Class ring ornament | 19 |
| Class ring recipients: Abbr. | 28 |
| Class ritual | 12 |
| Class signer-upper | 18 |
| Class skipper | 13 |
| Class starter | 13 |
| Class stopper | 13 |
| Class struggle | 14 |
| Class struggle? | 15 |
| Class struggles? | 16 |
| Class subdivision, in taxonomy | 30 |
| Class summaries | 15 |
| Class taught with Skype | 23 |
| Class that doesn't require much studying | 44 |
| Class that dwells on the past | 29 |
| Class that ends before labor day? | 33 |
| Class that gives out demerits | 29 |
| Class that likely covers GDP | 28 |
| Class that makes sweaters? | 26 |
| Class that might a lecture about sin | 36 |
| Class that might have a lab | 27 |
| Class that might have finger painting and naptime | 49 |
| Class that requires little effort | 33 |
| Class that requires little effort to pass | 41 |
| Class that requires no effort to pass | 37 |
| Class that requires very little work | 36 |
| Class that studies the health of the economy? | 45 |
| Class that teaches about the birds and the bees | 47 |
| Class that will teach you how to put things in perspective | 58 |
| Class that's "hard," according to a talking Barbie doll | 69 |
| Class that's a cakewalk | 27 |
| Class that's for the birds | 30 |
| Class that's no struggle | 28 |
| Class that's not just for kicks | 35 |
| Class that's simple to pass | 31 |
| Class that's soon to leave: Abbr. | 37 |
| Class to which all of us belong | 31 |
| Class trip chaperons take them | 30 |
| Class trip destination, sometimes | 33 |
| Class underachiever | 19 |
| Class unit | 10 |
| Class using a fridge | 20 |
| Class using mats | 16 |
| Class warfare org.? | 19 |
| Class warm-up | 13 |
| Class warmup before a big exam | 30 |
| Class where you might learn about crabs | 39 |
| Class where you'll gain perspective | 39 |
| Class with a lab | 16 |
| Class with a lot of books | 25 |
| Class with a lot of make-up exams: Abbr. | 40 |
| Class with a lot of reading, for short | 38 |
| Class with a Paul Samuelson text | 32 |
| Class with a shoe-shining lab? | 30 |
| Class with a skeleton in the closet?: Abbr. | 43 |
| Class with a studio | 19 |
| Class with a take-home, open-book, true-false final, say | 56 |
| Class with Browning and Golding, say | 36 |
| Class with Bunsen burners: abbr. | 32 |
| Class with clout | 16 |
| Class with common attributes: Comb. form | 40 |
| Class with crayons | 18 |
| Class with dissections, briefly | 31 |
| Class with dissections, for short | 33 |
| Class with dissections: Abbr. | 29 |
| Class with divisions | 20 |
| Class with flasks and beakers | 29 |
| Class with graphs, for short | 28 |
| Class with idioms: Abbr. | 24 |
| Class with low standards | 24 |
| Class with many functions: Abbr. | 32 |
| Class with many makeup exams?: Abbr. | 36 |
| Class with mats | 15 |
| Class with models | 17 |
| Class with numbers | 18 |
| Class with only a few students, say | 35 |