Definition of forth

• adv. - Forward; onward in time, place, or order; in advance from a given point; on to end; as, from that day forth; one, two, three, and so forth.
• adv. - Out, as from a state of concealment, retirement, confinement, nondevelopment, or the like; out into notice or view; as, the plants in spring put forth leaves.
• adv. - Beyond a (certain) boundary; away; abroad; out.
• adv. - Throughly; from beginning to end.
• prep. - Forth from; out of.
• n. - A way; a passage or ford.