to take up or introduce (something) prematurely.
to eagerly wait for (something)
to know of (something) before it happens; to expect.
To act before (someone), especially to prevent an action.
To take upon oneself; to start, to embark on (a specific task etc.).
To commit oneself (to an obligation, activity etc.).
To pass a slower moving vehicle on the curbside rather than on the side closest to oncoming traffic.
The passing of slower traffic on the curbside rather than on the side closest to oncoming traffic.