Frequency: The word is one of the 700 most common words in English.
1.
Something that is ~ is very significant, is highly valued, or is necessary.
The planned general strike represents an ~ economic challenge to the government...
It’s ~ to answer her questions as honestly as you can...
It was ~ that he rest.
ADJ: oft ADJ to n, it v-link ADJ to-inf/that
~ly
I was hungry, and, more ~ly, my children were hungry.
ADV
2.
Someone who is ~ has influence or power within a society or a particular group.
...an ~ figure in the media world.
ADJ