| Partially burned pipe tobacco | 29 |
| Partially melted, as snow | 25 |
| Partially paid athlete | 22 |
| Partially removable roof | 24 |
| Participant at the Olympics | 27 |
| Participant in a '70s fad | 29 |
| Participant in a collision | 26 |
| Participant in a pantry raid | 28 |
| Participant in a regatta | 24 |
| Participant in a struggle | 25 |
| Participant in democracy | 24 |
| Participant's comment | 25 |
| Participant, so to speak | 24 |
| Participants in a debate | 24 |
| Participants in a feast | 23 |
| Participants in a July game | 27 |
| Participants in a pub pastime | 29 |
| Participants in an annual run | 29 |
| Participants in hat tricks? | 27 |
| Participate casually (in) | 25 |
| Participate enthusiastically | 28 |
| Participate in a 401(k) | 23 |
| Participate in a biathlon | 25 |
| Participate in a certain bee | 28 |
| Participate in a chinfest | 25 |
| Participate in a crime | 22 |
| Participate in a food fight? | 28 |
| Participate in a forced march | 29 |
| Participate in a gabfest | 24 |
| Participate in a hootenanny | 27 |
| Participate in a lake sport | 27 |
| Participate in a langlauf | 25 |
| Participate in a primary | 24 |
| Participate in a pub crawl | 26 |
| Participate in a relay race | 27 |
| Participate in a think tank | 27 |
| Participate in a tug of war | 27 |
| Participate in a water sport | 28 |
| Participate in an auction | 25 |
| Participate in an election | 26 |
| Participate in an ensemble | 26 |
| Participate in an ice sport | 27 |
| Participate in an ovation | 25 |
| Participate in charades | 23 |
| Participate in Ice Capades | 26 |
| Participate in karaoke | 22 |
| Participate in the lists | 24 |
| Participate inan alley game | 27 |
| Participate on a debate team | 28 |
| Participate on Election Day | 27 |
| Participated at Henley | 22 |
| Participated in a book group | 28 |
| Participated in a choir | 23 |
| Participated in a derby | 23 |
| Participated in a gang tackle | 29 |
| Participated in a jam session | 29 |
| Participated in a marathon | 26 |
| Participated in a pep rally | 27 |
| Participated in a pool, say | 27 |
| Participated in a race walk? | 28 |
| Participated in a regatta | 25 |
| Participated in a rodeo event | 29 |
| Participated in a roundup | 25 |
| Participated in a seder | 23 |
| Participated in archaeology | 27 |
| Participated in charades | 24 |
| Participated in cross country | 29 |
| Participated in talk radio | 26 |
| Participated temporarily | 24 |
| Participates in a bear market | 29 |
| Participates in a hunt | 22 |
| Participates in a marathon | 26 |
| Participates in a medley | 24 |
| Participates in an auction | 26 |
| Participates in domestic life | 29 |
| Participates in forensics | 25 |
| Participates in the Super G | 27 |
| Participating in a 401(k) | 25 |
| Participating in a group | 24 |
| Participating in a yacht race | 29 |
| Participating in the Indy 500 | 29 |
| Participating in the rat race | 29 |
| Participation criterion | 23 |
| Participation declaration | 25 |
| Participles, sometimes | 22 |
| Particle accelerator particle | 29 |
| Particle accelerator, e.g. | 26 |
| Particle containing a quark | 27 |
| Particle depicted on an Emmy | 28 |
| Particle detector co-creator | 28 |
| Particle emitted by a quark | 27 |
| Particle flux density symbols | 29 |
| Particle for a physicist | 24 |
| Particle in a charged state | 27 |
| Particle in a cloud chamber | 27 |
| Particle in a cyclotron | 23 |
| Particle in a quark model | 25 |
| Particle in a salt solution | 27 |
| Particle in an atomic nucleus | 29 |
| Particle in an hourglass | 24 |