Bible Dictionaries
At One

Webster's Dictionary

(1):

In concord or friendship; in agreement (with each other); as, to be, bring, make, or set, at one, i. e., to be or bring in or to a state of agreement or reconciliation.

(2):

Together.

(3):

Of the same opinion; agreed; as, on these points we are at one.

Bibliography Information
Webster, Noah. Entry for 'At One'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/at-one.html. 1828.