noun \ˈfrst\

: a thin layer of ice that forms on the ground, on grass, etc., when the air becomes cold

: the occurrence of weather that is cold enough to cause water to freeze and frost to form

Full Definition of FROST

a :  the process of freezing
b :  a covering of minute ice crystals on a cold surface; also :  ice particles formed from a gas
c :  the temperature that causes freezing
a :  coldness of deportment or temperament :  an indifferent, reserved, or unfriendly manner
b :  failure <the play was … a most dreadful frost — Arnold Bennett>

Examples of FROST

  1. The grass was covered with frost.
  2. Frost formed on the window.
  3. These plants should bloom until the first frost of the season.
  4. We had an early frost.

Origin of FROST

Middle English, from Old English; akin to Old High German frost — more at freeze
First Known Use: before 12th century

Related to FROST

Rhymes with FROST



: to cover (something) with frost

: to become covered with frost

: to cover (something, such as a cake) with frosting (sense 1)

Full Definition of FROST

transitive verb
a :  to cover with or as if with frost; especially :  to put icing on (cake)
b :  to produce a fine-grained slightly roughened surface on (as metal or glass)
:  to injure or kill (as plants) by frost
:  to make angry or irritated <that really frosts me>
intransitive verb
:  to become frosted

Examples of FROST

  1. The cold had frosted the windows.
  2. I have to frost the birthday cake.

First Known Use of FROST



biographical name \ˈfrst\

Definition of FROST

Robert Lee 1874–1963 Am. poet
Frost·ian \ˈfrs-tē-ən, -chən\ adjective


noun    (Concise Encyclopedia)

Atmospheric moisture that crystallizes directly on the ground and on exposed objects. The term also refers to the occurrence of subfreezing temperatures that affect plants and crops. Frost crystals, sometimes called hoarfrost in the aggregate, form when water vapour in the atmosphere passes into the ice-crystal phase without going through the intermediate liquid phase. Frost forms under conditions that would form dew if the temperature were above freezing. In agriculture, frost refers to the freezing of the water in plant cells, which causes the cells to burst and thereby destroys the plant.


Next Word in the Dictionary: frostbird
Previous Word in the Dictionary: frosh
All Words Near: frost

Seen & Heard

What made you want to look up frost? Please tell us where you read or heard it (including the quote, if possible).