[n., adj. kwin-too-pli-kit, -tyoo-; v. kwin-too-pli-keyt, -tyoo-] 
noun, adjective, verb, -cat⋅ed, -cat⋅ing.| 1. | a group, series, or set of five copies or identical items, esp. copies of typewritten matter. |
| 2. | noting or consisting of five identical parts; fivefold. |
| 3. | pertaining to a fifth item or copy of something. |
| 4. | to produce or copy in quintuplicate. |
| 5. | to make five times as great, as by multiplying. |
| 6. | in quintuplicate, in five identical copies. |
plɪ