What are words that mean the same thing as first?

Here are some words that mean the same thing as "first," depending on the context:

General synonyms:

* Initial

* Primary

* Preliminary

* Inaugural

* Original

* Leading

* Foremost

* Prior

* Preceding

* Opening

* Beginning

More specific synonyms:

* Pioneer (for someone who does something first)

* Inaugurator (for someone who starts something new)

* Precursor (for something that comes before and influences something else)

* Premiere (for the first public performance of a play, movie, etc.)

* Inauguration (for the formal beginning of a new period or term)

* Genesis (for the origin or beginning of something)

Phrases:

* At the outset

* From the start

* In the beginning

* To begin with

* First and foremost

The best synonym to use will depend on the specific meaning you want to convey.