| No. | Item | Definition |
|---|---|---|
| 1. | afterimage | An image lingering after its source disappears. |
| 2. | aglet | The small protective tip on a shoelace. |
| 3. | albumen | The clear white surrounding an egg’s yolk. |
| 4. | architrave | Decorative molding framing a door or window. |
| 5. | baluster | One upright support beneath a railing. |
| 6. | bar tack | A short row of stitches reinforcing stressed fabric. |
| 7. | bloom | The natural powdery coating on some fruits. |
| 8. | bokeh | The appearance of out-of-focus areas in a photograph. |
| 9. | borborygmus | A rumbling sound made by your intestines. |
| 10. | burr | A rough edge left after cutting or drilling. |
| 11. | canthus | Either corner where your upper and lower eyelids meet. |
| 12. | chalaza | A twisted strand anchoring an egg’s yolk. |
| 13. | columella | The tissue separating your nostrils underneath your nose. |
| 14. | cowlick | A hair tuft growing against the surrounding direction. |
| 15. | crepuscular rays | Sunbeams streaming through gaps in clouds. |
| 16. | crow’s-feet | Fine wrinkles beside the outer eye corners. |
| 17. | Cupid’s bow | The double curve of the upper lip. |
| 18. | cuticle | The thin skin at a nail’s base. |
| 19. | dart | A stitched fold shaping fabric to the body. |
| 20. | déjà vu | The feeling that a new experience happened before. |
| 21. | diastema | A gap between neighboring teeth. |
| 22. | dormer | A windowed structure projecting from a sloping roof. |
| 23. | earworm | A tune that keeps repeating in your head. |
| 24. | efflorescence | A powdery salt deposit on masonry surfaces. |
| 25. | ellipsis | Three dots indicating omission, hesitation, or trailing speech. |
| 26. | escutcheon | A protective or decorative plate around a fitting. |
| 27. | fascia | A board covering the edge of a roof. |
| 28. | ferrule | A metal sleeve reinforcing or joining something. |
| 29. | finial | A decorative ornament topping a structure or object. |
| 30. | flashing | Material sealing roof joints against water. |
| 31. | flavedo | The colored outer layer of a citrus peel. |
| 32. | floater | A drifting speck in your field of vision. |
| 33. | fly | A covered fastening opening in trousers. |
| 34. | frenulum | A small tissue fold restricting an organ’s movement. |
| 35. | gable | A triangular wall section beneath a sloping roof. |
| 36. | gills | Thin, spore-bearing plates beneath some mushroom caps. |
| 37. | glabella | The smooth area between your eyebrows. |
| 38. | grommet | A ring reinforcing a hole in material. |
| 39. | guillemet | An angle-shaped quotation mark, « or ». |
| 40. | gusset | An inserted fabric panel adding room or strength. |
| 41. | hangnail | A torn skin flap beside a fingernail. |
| 42. | heat haze | Shimmering distortion caused by unevenly heated air. |
| 43. | helix | The curved outer rim of your ear. |
| 44. | hilum | The scar where a seed was attached. |
| 45. | hypnic jerk | A sudden twitch as you fall asleep. |
| 46. | interrobang | A combined question mark and exclamation mark. |
| 47. | iridescence | Shifting rainbow colors that change with viewing angle. |
| 48. | jamais vu | The feeling that something familiar is suddenly unfamiliar. |
| 49. | jamb | An upright side of a doorway or window. |
| 50. | kerf | The narrow cut left by a saw. |
| 51. | knurling | A patterned surface texture that improves grip. |
| 52. | lenticel | A small breathing pore on bark or fruit. |
| 53. | lethologica | Difficulty recalling a word you know. |
| 54. | lint | Loose fibers shed by fabric. |
| 55. | lintel | A horizontal support above a door or window. |
| 56. | lunula | The pale crescent at a fingernail’s base. |
| 57. | mackerel sky | A sky patterned with small, rippling cloud patches. |
| 58. | mare’s-tail | A wispy, curved cirrus cloud. |
| 59. | meniscus | The curved surface of liquid in a container. |
| 60. | moiré | A wavy pattern created by overlapping regular patterns. |
| 61. | mullion | A vertical divider between window units. |
| 62. | muntin | A narrow strip separating individual windowpanes. |
| 63. | muselet | The wire cage securing a champagne cork. |
| 64. | nap | The directional fuzz on a fabric’s surface. |
| 65. | nasolabial fold | A crease running from nose to mouth corner. |
| 66. | newel | A sturdy post supporting a staircase handrail. |
| 67. | nosing | The projecting front edge of a stair tread. |
| 68. | nostalgia | A wistful longing for the past. |
| 69. | obelus | The division sign, ÷. |
| 70. | pareidolia | Seeing familiar shapes in random patterns. |
| 71. | parting line | A seam where sections of a mold meet. |
| 72. | petrichor | The earthy smell after rain hits dry ground. |
| 73. | philtrum | The groove between your nose and upper lip. |
| 74. | pilling | The formation of small fuzz balls on fabric. |
| 75. | piloerection | Body hairs standing upright, producing goosebumps. |
| 76. | placket | A finished opening for fastening a garment. |
| 77. | punt | The indentation in a wine bottle’s bottom. |
| 78. | rasceta | The creases across the inside of your wrist. |
| 79. | scintillation | The twinkling of light, especially from stars. |
| 80. | selvedge | The finished edge of woven fabric. |
| 81. | sillage | The scent trail someone wearing perfume leaves. |
| 82. | soffit | The underside of an overhanging building feature. |
| 83. | sun dog | A bright spot beside the sun. |
| 84. | sun glitter | Sparkling sunlight reflected from a rippling water surface. |
| 85. | tamper band | The breakaway ring beneath a bottle cap. |
| 86. | tittle | The dot above a lowercase i or j. |
| 87. | tongue | The flap beneath a shoe’s laces. |
| 88. | tragus | The small cartilage flap before your ear canal. |
| 89. | transom | A horizontal crosspiece above a door or window. |
| 90. | umbilicus | The belly button. |
| 91. | umbra | The fully shaded region of a shadow. |
| 92. | uvula | The dangling tissue at your throat’s entrance. |
| 93. | vamp | The shoe section covering the foot’s upper front. |
| 94. | virga | Precipitation that evaporates before reaching the ground. |
| 95. | wale | A raised ridge in fabric such as corduroy. |
| 96. | weep hole | A small opening allowing trapped water to drain. |
| 97. | welt | A leather strip joining shoe upper and sole. |
| 98. | whey | The liquid remaining after milk forms curds. |
| 99. | widow’s peak | A V-shaped hairline point on the forehead. |
| 100. | yoke | A shaped panel supporting part of a garment. |