(a) In two copies; (b) in two different ways; (c) in twice the amount, doubly; (d) ~ more, twice as large, great, or numerous; ~ as much, twice as much; ~ gret to, twice as big as (sth.); ~ so mighti, twice as powerful; (e) double clos, enclosed doubly, i.e. provided with a double bottom; ~ holi, doubly sacred.