lockage noun. ['lɒkɪdʒ] L17.
[from LOCK noun², verb¹ + -AGE.]
I. 1. The means of locking or fitting pieces of timber together. Only in L17.

[TahlilGaran] English Dictionary ▲

lockage
II.

2. The amount of rise or fall effected by a (canal etc.) lock or series of locks. L18.

3. Payment levied for going through a lock. L18.

4. The construction and working of locks; locks collectively. E19.

5. The passage of a vessel through a lock. E20.

[TahlilGaran] English Dictionary ▲