what does frost mean?

[Iumy]

English Grammar Tests, Elementary Level

ESL/EFL Test #114 "Weather Test (1)", question 4

In the northern hemisphere, ......... on the grass and plants in the fall is usually a sign that winter is coming.

(a) rain
(b) sunny weather
(c) frost

English Grammar Tests, Elementary Level

ESL/EFL Test #114 "Weather Test (1)", answer 4

In the northern hemisphere, frost on the grass and plants in the fall is usually a sign that winter is coming.

Correct answer: (c) frost
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what does frost mean?

Iumy

[Linda]

Please refer to this dictionary for definitions
http://www.merriam-webster.com/dictionary/frost
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[Sunglasses]

hello Iumy and Linda
the link doesn't work and idon't know if you could open it Iumy
but i found meaning the word frost and i want to share it with you

noun
1. ice crystals forming a white deposit (especially on objects outside)
2. weather cold enough to cause freezing
3. the formation of frost or ice on a surface
4. United States poet famous for his lyrical poems on country life in New England (1874-1963)
verb
1. decorate with frosting
2. provide with a rough or speckled surface or appearance
3. cover with frost
4. damage by frost

i hope that it could help you