verb, -laced, -lac⋅ing.| 1. | to cross one another, typically passing alternately over and under, as if woven together; intertwine: Their hands interlaced. |
| 2. | to unite or arrange (threads, strips, parts, branches, etc.) so as to intercross one another, passing alternately over and under; intertwine. |
| 3. | to mingle; blend. |
| 4. | to diversify, as with threads woven in. |
| 5. | to intersperse; intermingle: She interlaced her lecture on Schubert with some of his songs. |