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Webster 1913 Edition

Adj.

[AS.

sixfealand

Six times repeated; six times as much or as many.

Adj.

[six and fold.] Six times repeated; six double; six times as much.

sixfold ‎(not comparable)

Having six component parts.
The method is sixfold, and I will tell you what the six steps you must take are.

having six component parts

sixfold ‎(not comparable)

Times six, multiplied by six.
I will return your investment sixfold. That's right, you'll have 600% of what you started with.