| v. t. | 1. | To convert from a solid form to that of a liquid; to melt; to dissolve; and technically, to melt by the sole agency of heat. |
| 2. | To convert from a gaseous form into a liquid; | |
| v. i. | 1. | To become liquid. |
| Verb | 1. | liquefy - become liquid; "The garden air overnight liquefied into a morning dew" |
| 2. | liquefy - make (a solid substance) liquid, as by heating; "liquefy the silver" | |
| 3. | liquefy - become liquid or fluid when heated; "the frozen fat liquefied" |