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sig • na • ture / ' signstjsr / noun [ count ]

your name as you usually write it, for example at the end of a letter The verb is sign .

sig • nif • i • cance AWB / sig' nifsksns / noun

[ noncount ]

the importance or meaning of something What is the significance of this discovery?

sig • nif • i • cant |awl| / sig 'nifsksnt /

adjective

important or large enough to be noticed

a significant increase in the number of accidents

having a particular meaning

It is significant that he changed his will just before he died.

sign lan • guage / ' sain ,l®ggwid3 / noun

[noncount]

( ENGLISH LANGUAGE ARTS ) a language that uses movements of the hands. It is used especially by people who cannot hear.

sign • post / ' sainpoust / noun [ count ]

a sign beside a road that shows the way to a place and how far it is

Sikh / sik / noun [ count ]

( RELIGION ) a person who follows one of the religions of India (called Sikhism ) Sikh adjective

si .Ience О / sailsns / noun 1 [ noncount ] a situation in which there is no sound

can only work in complete silence .

[ count, noncount ] a time when no one speaks or makes a noise

SAN DIEGO 235 miles

There was a long silence before she answered the question. We ate our dinner in silence .

si • lent / ' sailant / adjective

with no sound; completely quiet Everyone was asleep, and the house was silent.

If you are silent , you are not speaking

I asked him a question and he was silent for a moment before he answered. ► si • lent • ly / ' sailantli / adverb The cat moved silently toward the bird.

sil • hou • ette / isiiu' et / noun [ count ]

the dark shape of something that you can see against a light surface

the silhouette of buildings against the sky

sil • i • con / ' silikan ; ' silikan / noun [ noncount ]

( symbol Si )

( CHEMISTRY ) a chemical substance that is used for making computer parts and glass

silk / silk / noun [ noncount ]

a soft, smooth cloth made from a substance that an insect (called a silkworm ) makes This scarf is made of silk. a silk shirt

silk • y / ' silki / adjective ( silk i .er , silk . i .est )

soft, smooth, and shiny like silk silky hair

sill / sil / noun [ count ]

a narrow shelf at the bottom of a window

sill / sil / noun [ count ]

a narrow shelf at the bottom of a window

sil .ver l© / silvor/ noun [ noncount ]

( symbol Ag ) ( CHEMISTRY ) a shiny gray metal that is valuable

a silver necklace

things that are made of silver, for example knives, forks, and dishes

The thieves stole some valuable silver.

sil • ver 2 / ' silvar / adjective

with the color of silver; Our new car is silver.

sil • ver • ware / ' silvarwer / noun [ noncount ]

forks, knives, and spoons that are made of silver or some other metal

sim i .lar О Г / ' simalar /

the same in some ways but not completely the same Rats are similar to mice, but they are bigger. Jane and her sister look very similar.

sim • i • lar • i • ty aw fl ЯЯшПЯГэПлИкШга

[ count ] ( plural sim .i .lar . i . ties )

a way that people or things are the same

There are a lot of similarities between the two countries.

-ANTONYM difference

sim • il • e / ' simali / noun [ count, noncount ]

( ENGLISH LANGUAGE ARTS ) a word or phrase that compares one thing with something else, using the words "like" or "as"

"As white as snow" and "a face like a mask" are similes. —Look at metaphor .

sim • mer / ' simar / verb ( sim . mers , sim . mer . ing , sim . mered )