transitive. To make double; to make twice as many, as much, or as great; to increase or enlarge twofold; to multiply by two; to put two in place…

transitive. To double; to make twice as much or many.

transitive. To increase, intensify. Esp. in to redouble one's efforts. Also occasionally more specifically (chiefly in early use): to increase…

transitive. To make double, to double.

transitive. To make double; to repeat, redouble.

transitive. To double; to multiply by two; to make double or twofold; to redouble.

To double (a thing); to repeat (an action). Obsolete. rare.

transitive. To double. Also passive of two contiguous teeth: To be united.

(transitive) to make twice as much, to double; to do twice as much as.

To make double or twofold; to duplicate. Obsolete. rare.