1.  frost(n = noun.substance) hoar, hoarfrost, rime - ice crystals forming a white deposit (especially on objects outside);
is a kind of ice, water ice
Derived forms verb frost₃, adjective frosty₂

2.  frost(n = noun.phenomenon) freeze - weather cold enough to cause freezing;
is a kind of cold weather
Derived forms verb frost₄, adjective frosty₃

3.  frost(n = noun.process) icing - the formation of frost or ice on a surface;
is a kind of freeze, freezing
Derived forms verb frost₃, adjective frosty₂

4.  frost(n = noun.person) robert frost, robert lee frost - United States poet famous for his lyrical poems on country life in New England (1874-1963);
is a kind of poet
Derived form adjective frostian₁

1.  frost(v = verb.contact) ice - decorate with frosting; "frost a cake"
is one way to cover
Derived form noun frosting₁
Sample sentences: Somebody ----s something

2.  frost(v = verb.contact) - provide with a rough or speckled surface or appearance; "frost the glass"; "she frosts her hair"
is one way to cover
Sample sentences: Somebody ----s something

3.  frost(v = verb.contact) - cover with frost; "ice crystals frosted the glass"
is one way to cover
Derived forms noun frost₃, noun frost₁
Sample sentences: Something ----s something

4.  frost(v = verb.change) - damage by frost; "The icy precipitation frosted the flowers and they turned brown"
is one way to damage
Derived form noun frost₂
Sample sentences: Something ----s something

1.  The act of freezing; -- applied chiefly to the congelation of water; congelation of fluids. [1913 Webster]

2.  The state or temperature of the air which occasions congelation, or the freezing of water; severe cold or freezing weather. [1913 Webster]
"The third bay comes a frost, a killing frost." [1913 Webster]

3.  Frozen dew; -- called also hoarfrost or white frost. [1913 Webster]
"He scattereth the hoarfrost like ashes." [1913 Webster]

4.  Coldness or insensibility; severity or rigidity of character. [1913 Webster]
"It was of those moments of intense feeling when the frost of the Scottish people melts like a snow wreath." [1913 Webster]
"The brig and the ice round her are covered by a strange black
obscurity: it is the frost smoke of arctic winters."

1.  To injure by frost; to freeze, as plants. [1913 Webster]

2.  To cover with hoarfrost; to produce a surface resembling frost upon, as upon cake, metals, or glass; as, glass may be frosted by exposure to hydrofluoric acid. [1913 Webster]
"While with a hoary light she frosts the ground." [1913 Webster]

3.  To roughen or sharpen, as the nail heads or calks of horseshoes, so as to fit them for frosty weather. [1913 Webster]

frost, n. & v.
--n.
1 a (also white frost) a white frozen dew coating esp. the ground at night (windows covered with frost). b a consistent temperature below freezing-point causing frost to form.
2 a chilling dispiriting atmosphere.
3 sl. a failure.
--v.
1 intr. (usu. foll. by over, up) become covered with frost.
2 tr. a cover with or as if with frost, powder, etc. b injure (a plant etc.) with frost.
3 tr. give a roughened or finely granulated surface to (glass, metal) (frosted glass).
4 tr. US cover or decorate (a cake etc.) with icing.

Idiom:
black frost a frost without white dew. degrees of frost Brit. degrees below freezing-point (ten degrees of frost tonight). frost-work tracery made by frost on glass etc.

Derivative:
frostless adj.

Etymology:
OE f. Gmc

N  cold, coldness, frigidity, inclemency, fresco, winter, depth of winter, hard winter, Siberia, Nova Zembla, wind- chill factor, ice, snow, snowflake, snow crystal, snow drift, sleet, hail, hailstone, rime, frost, hoar frost, white frost, hard frost, sharp frost, barf, glaze, lolly, icicle, thick-ribbed ice, fall of snow, heavy fall, iceberg, icefloe, floe berg, glacier, nev_ee, serac, pruina, freezing mixture, dry ice, liquid nitrogen, liquid helium, chilliness, chill, shivering, goose skin, horripilation, rigor, chattering of teeth, numbness, frostbite, cold, cool, chill, chilly, icy, gelid, frigid, algid, fresh, keen, bleak, raw, inclement, bitter, biting, niveous, cutting, nipping, piercing, pinching, clay-cold, starved, chilled to the bone, shivering, aguish, transi de froid, frostbitten, frost-bound, frost-nipped, cold as a stone, cold as marble, cold as lead, cold as iron, cold as a frog, cold as charity, cold as Christmas, cool as a cucumber, cool as custard, icy, glacial, frosty, freezing, pruinose, wintry, brumal, hibernal, boreal, arctic, Siberian, hyemal, hyperborean, hyperboreal, icebound, frozen out, unwarmed, unthawed, lukewarm, tepid, isocheimal, isocheimenal, isocheimic, frozen, numb, frost-bitten, coldly, bitterly, pierre fendre.

frost fish, frost heave, frost heaving, frost mist, frost over, frost signal, frost snow, jack frost, robert frost, robert lee frost