| Triangular river formation | 26 |
| Triangular road sign | 20 |
| Triangular sail | 15 |
| Triangular sail on a clipper ship | 33 |
| Triangular sails | 16 |
| Triangular scarf | 16 |
| Triangular shape | 16 |
| Triangular shape in heraldry | 28 |
| Triangular shoe insert | 22 |
| Triangular sign | 15 |
| Triangular snack | 16 |
| Triangular soil deposits | 24 |
| Triangular stabilizer on an aircraft | 36 |
| Triangular street-corner sign | 29 |
| Triangular structure | 20 |
| Triangular toast topping | 24 |
| Triangular topsail | 18 |
| Triangular tract | 16 |
| Triangular traffic sign | 23 |
| Triangular treat | 16 |
| Triangular treats | 17 |
| Triangular wall | 15 |
| Triangular walls | 16 |
| Triangular wooden frame | 23 |
| Triangular, as a leaf | 21 |
| Triangular-bladed weapon | 24 |
| Triangular-bladed weapons | 25 |
| Triangular-bodied instrument | 28 |
| Triangular-headed Disney Channel character | 42 |
| Triangular-sailed ships | 23 |
| Triangular-shaped letter | 24 |
| Triangulum Australe neighbor | 28 |
| Triangulum neighbor | 19 |
| Triathlete | 10 |
| Triathlete adjective | 20 |
| Triathlete's asset | 22 |
| Triathlete's need | 21 |
| Triathlete's pre-race intake | 32 |
| Triathlete's problem | 24 |
| Triathlete's quality | 24 |
| Triathlete, at times | 20 |
| Triathletes | 11 |
| Triathletes, e.g. | 17 |
| Triathlon athletes | 18 |
| Triathlon attire | 16 |
| Triathlon competitor | 20 |
| Triathlon entrant | 17 |
| Triathlon gear | 14 |
| Triathlon leg | 13 |
| Triathlon need | 14 |
| Triathlon needs | 15 |
| Triathlon part | 14 |
| Triathlon part, informally | 26 |
| Triathlon segments | 18 |
| Triathlon start | 15 |
| Triathlon vehicle | 17 |
| Triathlon winner, with "the" | 38 |
| Triathlon, e.g. | 15 |
| Triatomic form of element #8 | 28 |
| Triatomic form of oxygen | 24 |
| Triatomic gas | 13 |
| Triatomic gas in a thinning layer ... and, symbolically, what appears in this puzzle's four longest answers | 111 |
| Triatomic greenhouse gas | 24 |
| Triatomic molecule | 18 |
| Triatomic oxygen | 16 |
| Triatomic oxygen molecule | 25 |
| Triatomic pollutant | 19 |
| Trib's home | 15 |
| Trib. workers | 13 |
| Tribal figure | 14 |
| Tribal advisers, typically | 26 |
| Tribal advisor | 14 |
| Tribal biggies | 14 |
| Tribal bigwig | 13 |
| Tribal carving | 14 |
| Tribal carvings | 15 |
| Tribal ceremonial feast | 23 |
| Tribal chief | 12 |
| Tribal chief, often | 19 |
| Tribal Council first name | 25 |
| Tribal Council highlight | 24 |
| Tribal council makeup, often | 28 |
| Tribal Council prop | 19 |
| Tribal division | 15 |
| Tribal drums | 12 |
| Tribal emblem | 13 |
| Tribal emblems | 14 |
| Tribal figure | 13 |
| Tribal funds | 12 |
| Tribal group member | 19 |
| Tribal groups | 13 |
| Tribal heads: Abbr. | 19 |
| Tribal heads? | 13 |
| Tribal healer | 13 |
| Tribal healers | 14 |
| Tribal historian | 16 |
| Tribal history | 14 |
| Tribal image | 12 |
| Tribal knowledge | 16 |
| Tribal land, informally, with "the" | 45 |