In transitive terms the difference between reject and overrule

is that reject is to refuse to accept while overrule is to nullify a previous ruling by a higher power.

As a noun reject

is something that is rejected.

As nouns the difference between fanfiction and fiction

is that fanfiction is while fiction is literary type using invented or imaginative writing, instead of real facts, usually written as prose.

As nouns the difference between murderer and child

is that murderer is a person who commits murder while child is a daughter or son; an offspring.

As verbs the difference between source and outsource

is that source is to obtain or procure: used especially of a business resource.outsource is to transfer the management and/or day-to-day execution of a business function to a third-party service provider.

As a noun source

is the person, place, or thing from which something (information, goods, etc.) comes or is acquired.

As adjectives the difference between repetitive and innovative

is that repetitive is happening many times in a similar way; containing repetition; repeating while innovative is characterized by the creation of new ideas or things.

As verbs the difference between counting and numbering

is that counting is present participle of lang=en while numbering is present participle of lang=en.

As nouns the difference between counting and numbering

is that counting is a count; the act by which something is counted while numbering is a sequence of numbers indicating order or otherwise used for identification.

As verbs the difference between confirme and validate

is that confirme is while validate is to render valid.

As nouns the difference between hello and pastas

is that hello is "Hello!" or an equivalent greeting while pastas is plural of lang=en.

As an interjection hello

is A greeting (salutation) said when meeting someone or acknowledging someone’s arrival or presence.

As a verb hello

is to greet with "hello".