Whenever you leave your home, walk from one room to another, or enter a building, you are crossing a threshold—that is, the horizontal floor piece that you cross over whenever you move through a doorway.
A threshold is a point of departure or transition. Graduation can mark a threshold — when you graduate from circus school, you're standing at the threshold of your new career as a trapeze artist.
Definition of threshold noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Also called limen. the point at which a stimulus is of sufficient intensity to begin to produce an effect: the threshold of consciousness; a low threshold of pain.
threshold (plural thresholds) The lowermost part of a doorway that one crosses to enter; a sill. synonyms Synonyms: doorsill, doorstep (by extension) An entrance; the door or gate of a house. quotations
any point of beginning: He was on the threshold of a new career. Physiology, Psychology the point at which something begins to take effect: Her dream was hovering on the threshold of consciousness.
There are 11 meanings listed in OED's entry for the noun threshold, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.
Also called limen. the point at which a stimulus is of sufficient intensity to begin to produce an effect: the threshold of consciousness; a low threshold of pain.