significantly/signífikəntli/adv. by a large amount
signify/sígnəfài/v. to be a sign of something
silence/sáiləns/n1. a lack of sound
n2. a period of time in which there is complete quiet or no speaking
v. to stop something making a sound or stop someone from talking
similar/símələr/adj. Something that is similar to something else has many things the same, although it is not exactly the same.
similarity/sìməlæ'rəti/n. the fact of two things or people being similar, or a way in which they are similar
simplify/símpləfài/v. to make something easier to do or understand
simulate/símjulèit/v. to create conditions or processes similar to something that exists
simultaneous/sàiməltéiniəs/adj. happening or existing at the same time
sincere/sinsíər/adj. honest and saying what you really feel or believe
Sincerely (yours) / Yours sincerelyused at the end of a formal letter before you sign your name
sink/síŋk/n. a bowl that is fixed to the wall in a kitchen or bathroom that you wash dishes, your hands, etc. in
v1. to go down or make something go down under the surface of water and not come back up
v2. to go down, or make something go down, into something soft
sip/síp/v. to drink, taking only a small amount at a time
sitcom/sítkɑ:m/n. a television series in which the same characters are involved in amusing situations in each show; situation comedy
site/sáit/n1. a website
n2. an area that is used for something or where something happens
n3. the place where something important happened in the past
v. to build something in a particular place
situate/síʧuèit/v. to put something in a particular position
situated/síʧuèitid/adj. [be ~] to be in a particular place
situation/sìʧuéiʃən/n. the set of things that are happening at a particular time and place
skeleton/skélətn/n. the structure made of all the bones in the body of a person or animal
skeptical/sképtikəl/adj. doubting that something is true or useful
skill/skíl/n. the ability to do an activity or job well, especially because you have done it many times
skilled/skíld/adj. having the abilities needed to do an activity or job well
skillful/skílfəl/adj. good at doing something
skillfully/skílfəli/adv. with great skill
skip/skíp/v1. to not do something that you usually do
v2. to move forward, jumping quickly from one foot to the other
skyscraper/skáiskrèipər/n. a very tall building in a city: