preliminary is on the Academic Word List.

Pronunciation change

Adjective change

Positive
preliminary

Comparative
more preliminary

Superlative
most preliminary

  1. If something is preliminary, it is a preparation for a main matter.

Noun change

Singular
preliminary

Plural
preliminaries

  1. (countable) A preliminary is a preparation for a main matter.

Preposition change

Preposition
preliminary

  1. before
    Preliminary to the main discussions, perhaps we could introduce ourselves.