Turn the screw means to increase pressure, pain, fear, or control in a calculated way. In poetry, the idiom evokes tightening machinery and psychological strain, making suffering feel deliberate and incremental. It can describe interrogation, manipulation, debt, tyranny, illness, or a conscience becoming harsher. A poet may use it to build suspense, showing how pressure intensifies until something yields. The phrase is useful for exploring coercion, cruelty, and the slow tightening of emotional or social constraint.

Turn the screw means increase pressure, pain, coercion, or psychological tension. The mechanical image suggests tightening by degrees, each turn making escape harder. In poetry, it is useful for interrogation, guilt, debt, political oppression, family manipulation, or dramatic suspense. Students may connect it with Henry James’s title The Turn of the Screw, where pressure becomes psychological and uncanny. It pairs well with metal, nerves, silence, and constraint.