The term DECLARE UNDER OATH is a legal phrase that refers to the act of testifying in court. To declare under oath means to make a statement or promise in front of a court of law that is legally binding. The crossword solutions for this term are DEPOSE (6 letters), ALLEGE (6 letters), ATTEST (6 letters), SWORE (5 letters), PERJURES (8 letters), ATTESTED (8 letters), and SWEAR (5 letters). DEPOSE means to testify under oath, while ALLEGE means to make a claim without proof. ATTEST means to affirm or certify something as true, while SWEAR means to make a solemn promise. Perjure means to lie under oath, while ATTESTED means to have testified to the truth of something.