toehold (Noun) — A relatively insignificant position from which future progress might be made. ex. "American diplomacy provided a toehold on which to proceed toward peace talks" ex. "his father gave him a toehold in the oil business"
toehold (Noun) — A small foothold used in climbing.
toehold (Noun) — A wrestling hold in which the toe is held and the leg is twisted against the joints.