vt.

1. 使合理化
2. 為……找藉口
3. 【數】使有理化

vi.

1. 實行合理化
2. 作辯解

v.

1. attempt to justify (an action or attitude) with logical reasoning.
2. Brit. make (a company or industry) more efficient by dispensing with superfluous personnel or equipment.
   ▸reorganize (a process or system) so as to make it more logical and consistent.
3. Mathematics  convert to a rational form.