Used chiefly in set phrases such as "play false" meaning to act treacherously or dishonestly.
Definitionen
In a deceitful or unfaithful manner; treacherously. He swore allegiance but later played false.
Out of tune; wrongly or incorrectly, especially in reference to music or measurement. The singer's final note rang false.
Archaic and rare; used to mean ‘to falsify’ or ‘to deceive’.
Definitionen
To make something false, especially by falsifying or deceiving. The accountant was accused of falsing the financial records.