stub (Noun) — A short piece remaining on a trunk or stem where a branch is lost.
stub (Noun) — A small piece. ex. "a stub of a pencil"
stub (Noun) — A torn part of a ticket returned to the holder as a receipt.
stub (Noun) — The part of a check that is retained as a record.
stub (Noun) — The small unused part of something (especially the end of a cigarette that is left after smoking).
stub (Verb) — Pull up (weeds) by their roots.
stub (Verb) — Extinguish by crushing. ex. "stub out your cigarette now"
stub (Verb) — Clear of weeds by uprooting them. ex. "stub a field"
stub (Verb) — Strike (one's toe) accidentally against an object. ex. "She stubbed her toe in the dark and now it's broken"