To cut down or reduce.
To furnish with a retrenchment (a defensive work within a fortification).
To dig or redig a trench where one already exists.
To terminate the employment of a worker to reduce the size of a workforce; to make redundant.
To abridge; to curtail.
To live less expensively; to economize.
To confine; to limit; to restrict.
To take up a new defensive position.
To make a reduction in the amount, extent, etc. of something.