| No. | Item | Definition |
|---|---|---|
| 1. | 911 | emergency telephone number |
| 2. | access | permission or way to enter |
| 3. | alarm | warning signal of danger |
| 4. | alert | watchful and ready to respond |
| 5. | ambulance | vehicle for medical emergencies |
| 6. | authorize | give official permission |
| 7. | authorized | officially allowed |
| 8. | backup | additional help or support |
| 9. | badge | official identification token |
| 10. | barrier | physical obstacle blocking passage |
| 11. | battery | power source for a device |
| 12. | breach | break in security or rules |
| 13. | burglary | illegal entry to commit crime |
| 14. | call sign | radio identification name |
| 15. | camera | device that records images |
| 16. | channel | radio frequency or route |
| 17. | checkpoint | place where entry is controlled |
| 18. | clearance | approved level of access |
| 19. | contraband | illegal or banned items |
| 20. | credential | proof of identity or authority |
| 21. | de-escalate | reduce tension or conflict |
| 22. | delivery | bringing goods to a place |
| 23. | detain | hold someone temporarily |
| 24. | dispatch | send personnel or information |
| 25. | disturbance | disruptive or disorderly event |
| 26. | document | record information formally |
| 27. | emergency | serious situation needing immediate action |
| 28. | employee | person working for an organization |
| 29. | escort | accompany someone for security |
| 30. | evacuate | move people out for safety |
| 31. | evidence | facts or objects proving something |
| 32. | extinguisher | device used to put out fire |
| 33. | fence | enclosing boundary structure |
| 34. | fire exit | emergency way out |
| 35. | firefighter | person who fights fires |
| 36. | first aid | immediate basic medical help |
| 37. | flashlight | portable hand-held light |
| 38. | footage | recorded video material |
| 39. | forgery | fake document or signature |
| 40. | fraud | deception for unlawful gain |
| 41. | gate | controlled entrance barrier |
| 42. | generator | machine producing backup electricity |
| 43. | gloves | hand coverings for protection |
| 44. | handcuffs | restraints for securing wrists |
| 45. | harassment | repeated unwanted harmful behavior |
| 46. | hazard | source of potential harm |
| 47. | helmet | protective headgear |
| 48. | ID | identification document or card |
| 49. | incident | an event requiring attention |
| 50. | inspect | examine carefully |
| 51. | intruder | person who enters unlawfully |
| 52. | keycard | card used for entry |
| 53. | leak | unintended escape of fluid or gas |
| 54. | license plate | vehicle identification plate |
| 55. | lockdown | restrict movement for safety |
| 56. | log | official record of events |
| 57. | loitering | standing around without clear purpose |
| 58. | malfunction | failure to work properly |
| 59. | metal detector | device finding metal objects |
| 60. | monitor | watch and track continuously |
| 61. | motion detector | device sensing movement |
| 62. | observe | watch carefully |
| 63. | outage | loss of power or service |
| 64. | paramedic | emergency medical professional |
| 65. | patrol | go around checking an area |
| 66. | perimeter | outer boundary of an area |
| 67. | police | law enforcement officers |
| 68. | post | assigned duty location |
| 69. | premises | building and surrounding property |
| 70. | radio | device for voice communication |
| 71. | receive | get a message or signal |
| 72. | report | official account of what happened |
| 73. | restricted | limited to authorized people |
| 74. | risk | chance of danger or loss |
| 75. | roster | list of assigned staff |
| 76. | screen | check for risks or prohibited items |
| 77. | search | look through for something |
| 78. | secure | make safe or protected |
| 79. | statement | formal spoken or written account |
| 80. | supervisor | person in charge of others |
| 81. | surveillance | close observation of people or places |
| 82. | suspect | person thought involved in wrongdoing |
| 83. | suspicious | causing doubt or concern |
| 84. | tailgating | following through secure entry |
| 85. | theft | taking property without permission |
| 86. | threat | possible danger or harm |
| 87. | transmit | send a radio message |
| 88. | trespass | enter property without permission |
| 89. | turnstile | rotating gate controlling entry |
| 90. | unauthorized | not officially allowed |
| 91. | uniform | standard work clothing |
| 92. | vandalism | deliberate property damage |
| 93. | vehicle | machine used for transport |
| 94. | vendor | outside supplier or service provider |
| 95. | verify | confirm as true or valid |
| 96. | victim | person harmed by an act |
| 97. | visitor | person temporarily on site |
| 98. | weapon | object used to cause harm |
| 99. | witness | person who saw an event |
| 100. | zone | specific area or section |
