Origin of interchangeable
Examples from the Web for interchangeably
Kaku has little problem using “brain” and “mind” interchangeably.
Note: Olympic commentators and curling articles use the terms "stone" and "rock" interchangeably.
Symbols C and D are interchangeably used to indicate a biased ringer.Cyclopedia of Telephony & Telegraphy Vol. 1|Kempster Miller
Food, uranexite or its concentrated derivative, interchangeably.Masters of Space|Edward Elmer Smith
In witness whereof the partys to these presents have Interchangeably put their hands the day and year above written.Every Day Life in the Massachusetts Bay Colony|George Francis Dow
A disputed sound, used, if at all, interchangeably with io in certain syllables.Myths and Legends of China|E. T. C. Werner
Another peculiarity is, Mr. Eddy uses "b" and "h" interchangeably.The Works of Robert G. Ingersoll, Vol. 10 (of 12)|Robert G. Ingersoll