| No. | Item | Definition |
|---|---|---|
| 1. | accuracy | correct representation of data |
| 2. | aggregation | combining data into summaries |
| 3. | alignment | arrangement along a line |
| 4. | animation | motion showing change or process |
| 5. | annotation | added note on a visual |
| 6. | axis | reference line on a chart |
| 7. | bar | rectangular mark for comparison |
| 8. | baseline | starting reference value |
| 9. | bin | grouping interval for values |
| 10. | box plot | distribution chart with quartiles |
| 11. | bubble chart | scatterplot with sized circles |
| 12. | bullet chart | compact performance comparison chart |
| 13. | channel | visual property carrying information |
| 14. | chart | visual display of data |
| 15. | choropleth | shaded area value map |
| 16. | cluster | group of similar points |
| 17. | color | hue used to encode meaning |
| 18. | comparison | examining differences between values |
| 19. | correlation | relationship between two variables |
| 20. | count | number of items |
| 21. | dashboard | screen of multiple visualizations |
| 22. | data | facts used for analysis |
| 23. | dataset | collection of related data |
| 24. | density | concentration of values in space |
| 25. | dimension | descriptive data attribute |
| 26. | distribution | how values are spread |
| 27. | dot plot | chart using dots |
| 28. | edge | link between nodes |
| 29. | encoding | visual mapping of data |
| 30. | facet | split view by subgroup |
| 31. | fill | interior color of a shape |
| 32. | filter | limit data by condition |
| 33. | forecast | predicted future values |
| 34. | frequency | how often something occurs |
| 35. | funnel | stage-by-stage narrowing chart |
| 36. | gauge | dial showing a current value |
| 37. | glyph | symbolic visual mark |
| 38. | gradient | smooth color transition |
| 39. | granularity | level of detail |
| 40. | graph | diagram showing relationships or trends |
| 41. | grid | background guide lines |
| 42. | heatmap | color-coded value matrix |
| 43. | hierarchy | levels of parent-child structure |
| 44. | highlight | make an element stand out |
| 45. | histogram | bar chart of frequencies |
| 46. | hue | basic color family |
| 47. | insight | meaningful understanding from data |
| 48. | KPI | key performance indicator |
| 49. | label | text identifying an element |
| 50. | latitude | north-south geographic coordinate |
| 51. | layout | overall visual arrangement |
| 52. | legend | key explaining symbols or colors |
| 53. | line | connected path showing change |
| 54. | longitude | east-west geographic coordinate |
| 55. | map | geographic visual display |
| 56. | mark | basic visual data element |
| 57. | mean | average value |
| 58. | measure | numeric value for analysis |
| 59. | median | middle value in ordered data |
| 60. | metric | quantitative measure |
| 61. | network | nodes and links structure |
| 62. | node | point in a network |
| 63. | noise | irrelevant variation in data |
| 64. | nominal | named categorical data |
| 65. | normalization | adjusting values to compare |
| 66. | opacity | degree of transparency |
| 67. | ordinal | ordered categorical data |
| 68. | outlier | value far from others |
| 69. | overview | broad summary view |
| 70. | percent | parts per hundred |
| 71. | percentile | relative standing in distribution |
| 72. | pie chart | circle chart of proportions |
| 73. | plot | graph data points visually |
| 74. | point | single plotted data mark |
| 75. | position | location representing a value |
| 76. | projection | method for mapping the globe |
| 77. | proportion | part relative to whole |
| 78. | quartile | one fourth of ordered data |
| 79. | range | difference between extremes |
| 80. | ratio | comparison of two quantities |
| 81. | readability | ease of reading |
| 82. | sankey | flow diagram with weighted links |
| 83. | scale | measurement range on an axis |
| 84. | scatterplot | plot showing paired values |
| 85. | shape | form used to distinguish data |
| 86. | size | magnitude shown visually |
| 87. | small multiples | series of similar small charts |
| 88. | sparkline | small inline trend chart |
| 89. | sum | total of values |
| 90. | tick | small axis mark |
| 91. | timeline | visual sequence over time |
| 92. | tooltip | hover text with details |
| 93. | transformation | changing data form or scale |
| 94. | treemap | nested rectangles showing hierarchy |
| 95. | trend | general direction of change |
| 96. | uncertainty | lack of complete confidence |
| 97. | variable | measured characteristic that can change |
| 98. | variance | spread around the mean |
| 99. | violin plot | distribution shape chart |
| 100. | whitespace | empty space aiding clarity |