Synset

the act of starting something for the first time; introducing something new
<noun.act>   freq. cnt.: 6 freq. cnt.: 2 freq. cnt.: 2 freq. cnt.: 1 freq. cnt.: 1

creation

foundation

founding

initiation

innovation

instauration

institution

introduction

origination

sample sentences

"she looked forward to her initiation as an adult"
"the foundation of a new scientific society"