1. (a.) Advantageous; suitable to a purpose, especially to one's own benefit\; hastening or forward; hence, tending to further or promote a proposed object; fit or proper under the circumstances; conducive to self-interest; desirable; advisable; -- sometimes contradistinguished from right.
2. (a.) Quick; expeditious.
3. (n.) That which serves to promote or advance; suitable means to accomplish an end.