Meaning of DOUBLING in English & ·vb.n. of double.

2. doubling ·noun the lining of the mantle borne about the shield or escutcheon.

3. doubling ·noun the process of redistilling spirits, to improve the strength and flavor.

4. doubling ·noun a turning and winding; as, the doubling of a hunted hare; shift; trick; artifice.

5. doubling ·noun the act of one that doubles; a making double; reduplication; also, that which is doubled.

Webster English vocab.      Английский словарь Webster.