omnipresent - everywhere
Strictly speaking, the term ‘omnipresent’ would really only apply to a deity of some kind, but while it can be used in that context, it is most commonly expresses somebody or something that seems to be everywhere. In that regard, it is utilized for effect or to make a point about something.
The CEO’s influence is omnipresent in this company. She really seems to have an iron grip on the organization.
The priest gave a sermon about the omnipresence of God, explaining that it means that God is capable of being everywhere at the same time.
I hate living in such a busy city. The omnipresent sound of emergency sirens is so irritating and distracting!