justify verb
ADV. really, truly Can you really justify the destruction of such a fine old building? | hardly The meagre result hardly justified the risks they took to get it.
VERB + JUSTIFY can/could | attempt to, seek to, try to | need to | be difficult to, be hard to He found it very difficult to justify his decision.
PREP. on the grounds of/that The decision is justified on the grounds that there is no realistic alternative. | to How will you justify this pay cut to your employees?
You can also check other dicts: justify (English, 中文解释 ), wordnet sense, Collins Definition