English Reference
phrasal verb

cast off

phr.v.

  1. 01 C1 Advanced Literary

    to get rid of something or someone that you no longer want or that limits your freedom.

    to discard, reject, or shed something perceived as a burden or constraint. Transitive; the object may appear between the verb and the particle.

    Simple

    As she grew older, she cast off her old fears and became more confident.

    In context

    The revolutionary movement sought to cast off the shackles of colonial rule and establish a sovereign government.

  2. 02 B2 Upper Intermediate

    to untie the ropes holding a boat to a dock so that it can sail away.

    to release the lines securing a vessel to a fixed point, such as a wharf or buoy, to allow it to get underway. Ambitransitive.

    Simple

    The captain gave the order to cast off just as the sun began to rise.

    In context

    After the final passengers boarded, the crew cast off the stern lines and the ferry drifted slowly away from the pier.

    untieunmoor
  3. 03 B2 Upper Intermediate

    to finish the last row of a piece of knitting so the stitches do not come apart.

    to complete the final row of stitches in knitting and remove them from the needle in a way that prevents unravelling.

    Simple

    Once you reach the desired length, you need to cast off to finish the scarf.

    In context

    She spent the evening casting off the sleeves of the sweater, careful to keep the tension even so the edge wouldn't pucker.

    bind off
    cast on
  4. 04 C2 Proficiency TechnicalArchaic

    to calculate how much space a piece of writing will take when it is printed.

    to estimate the amount of physical space or number of pages a manuscript will occupy when set in type.

    Simple

    The editor had to cast off the manuscript to see if it would fit in the magazine.

    In context

    Before the advent of digital layout software, compositors had to manually cast off every page to ensure the text block was balanced.

Teaching tip

anchor this in the literal nautical sense of untying a boat from a dock to help students visualize the act of 'releasing' or 'letting go'.

Particles
off
Separability
optional
Pattern
cast + (object) + off
This entry
Level C1 · Advanced
Frequency Common
Updated