S

sabotage - v. to damage or destroy as an act against an organization or nation?
("The rebels sabotaged the railroad.")

sacrifice - v. to do without something or to suffer a loss for a belief， idea， goal or
another person?

sad - ad. not happy?

safe - ad. away from harm or danger?

sail - v. to travel by boat or ship?

sailor - n. a person involved in sailing a boat or ship?

salt - n. a white substance found in sea water and in the ground， used to affect the
taste of food?

same - ad. not different; not changed; like another or others?

sand - n. extremely small pieces of crushed rock found in large amounts in deserts
and on coasts?

satellite - n. a small object in space that moves around a larger object; an object
placed in orbit around the earth?

satisfy - v. to give or provide what is desired， needed or demanded

save - v. to make safe; to remove from harm; to keep for future use?

say - v. to speak; to express in words?

school - n. a place for education; a place where people go to learn?

science - n. the study of nature and the actions of natural things， and the knowledge
gained about them

sea - n. a large area of salt water， usually part of an ocean?

search - v. to look for carefully?

season - n. one of the four periods of the year that is based on the earth’s position
toward the sun (spring， summer， autumn， winter); a period of time based on
different weather conditions ("dry season"， "rainy season"); a period during the
year when something usually happens ("baseball season")?

seat - n. a thing to sit on; a place to sit or the right to sit there ("a seat in
parliament")?

second - ad. the one that comes after the first?

secret - n. something known only to a few and kept from general knowledge; ad.
hidden from others; known only to a few?

security - n. freedom from danger or harm; protection; measures necessary to
protect a person or place ("Security was increased in the city.")?

see - v. to know or sense through the eyes; to understand or know?

seed - n. the part of a plant from which new plants grow?

seek(ing) - v. to search for ("They are seeking a cure for cancer."); to try to get
("She is seeking election to public office."); to plan to do ("Electric power
companies are seeking to reduce their use of coal.")?

seem - v. to appear to be ("She seems to be in good health.")?

seize - v. to take quickly by force; to take control of quickly; to arrest?

self - n. all that which makes one person different from others?

sell - v. to give something in exchange for money?

Senate - n. the smaller of the two groups in the governments of some countries，
such as in the United States Congress?

send - v. to cause to go; to permit to go; to cause to be carried， taken or directed to
or away from a place?

sense - v. to come to know about by feeling， believing or understanding; n. any of
the abilities to see， hear， taste， smell or feel?

sentence - v. to declare the punishment for a crime; n. the punishment for a crime?

separate - v. to set or keep people， things or ideas away from or independent from
others; ad. not together or connected; different?

series - n. a number of similar things or events that follow one after another in time，
position or order?

serious - ad. important; needing careful consideration; dangerous?

serve - v. to work as an official; to be employed by the government; to assist or
help?

service - n. an organization or system that provides something for the public
("Schools and roads are services paid for by taxes."); a job that an organization or
business can do for money; military organizations such as an army， navy or air
force; a religious ceremony?

set - v. to put in place or position; to establish a time， price or limit?

settle - v. to end (a dispute); to agree about (a problem); to make a home in a new
place?

several - ad. three or more， but not many?

severe - ad. not gentle; causing much pain， sadness or damage?

sex - n. either the male or female group into which all people and animals are
divided because of their actions in producing young; the physical activity by which
humans and animals can produce young?

shake - v. to move or cause to move in short， quick movements?

shape - v. to give form to; n. the form of something， especially how it looks?

share - v. to give part of something to another or others; n. a part belonging to，
given to or owned by a single person or a group; any one of the equal parts of
ownership of a business or company?

sharp - ad. having a thin edge or small point that can cut or hurt; causing hurt or
pain?

she - pro. the girl or woman who is being spoken about?

sheep - n. a farm animal used for its meat and hair?

shell - v. to fire artillery; n. a metal container that is fired from a large gun and
explodes when it reaches its target; a hard outside cover?

shelter - v. to protect or give protection to; n. something that gives protection; a
place of safety?

shine - v. to aim a light; to give bright light; to be bright; to clean to make bright?

ship - v. to transport; n. a large boat?

shock - v. to cause to feel sudden surprise or fear; n. something that greatly affects
the mind or emotions; a powerful shake， as from an earthquake?

shoe - n. a covering for the foot?

shoot - v. to cause a gun or other weapon to send out an object designed to kill; to
use a gun?

short - ad. lasting only for a small period of time; not long; opposite tall?

should - v. used with another verb (action word) to show responsibility ("We should
study.")， probability ("The talks should begin soon.")， or that something is believed
to be a good idea ("Criminals should be punished.")?

shout - v. to speak very loudly?

show - v. to make something be seen; to make known; n. a play or story presented
in a theater， or broadcast on radio or television， for enjoyment or education;
something organized to be seen by the public?

shrink - v. to make or become less in size， weight or value?

sick - ad. suffering physically or mentally with a disease or other problem; not in
good health?

sickness - n. the condition of being in bad health?

side - n. the outer surfaces of an object that are not the top or bottom; parts away
from the middle; either the right or left half of the body?

sign - v. to write one’s name; n. a mark or shape used to mean something; evidence
that something exists or will happen; a flat piece of material with writing that gives
information?

signal - v. to send a message by signs; n. an action or movement that sends a
message?

silence - v. to make quiet; to stop from speaking or making noise; n. a lack of noise
or sound?

silver - n. a valued white metal?

similar - ad. like something else but not exactly the same?

simple - ad. easy to understand or do; not difficult or complex?

since - prep. from a time in the past until now ("I have known her since we went to
school together.")?

sing - v. to make music sounds with the voice?

single - ad. one only?

sink - v. to go down into water or other liquid?

sister - n. a female with the same father or mother as another person?

sit - v. to rest on the lower part of the body without the support of the legs; to
become seated?

situation - n. the way things are during a period of time?

size - n. the space occupied by something; how long， wide or high something is?

skeleton - n. all the bones of a human or other animal together in their normal
positions?

skill - n. the ability gained from training or experience?

skin - n. the outer covering of humans and most animals?

sky - n. the space above the earth?

slave - n. a person owned or controlled by another?

sleep - v. to rest the body and mind with the eyes closed?

slide - v. to move smoothly over a surface?

slow - v. to reduce the speed of; ad. not fast in moving， talking or other activities?

small - ad. little in size or amount; few in number; not important; opposite large?

smash - v. to break or be broken into small pieces by force; to hit or move with
force?

smell - v. to sense through the nose; n. something sensed by the nose ("the smell of
food cooking")?

smoke - v. to use cigarettes or other tobacco products by burning them and
breathing in the smoke; n. that which can be seen rising into the air like a cloud
from something burning?

smooth - ad. having a level surface; opposite rough?

snow - n. soft， white pieces of frozen water that fall from the sky， usually in winter
or when the air temperature is very cold?

so - ad. in such a way that ("He held the flag so all could see it."); also; too ("She
left early， and so did we."); very ("I am so sick."); as a result ("They were sick， so
they could not come."); conj. in order that; for the purpose of ("Come early so we
can discuss the plans.")?

social - ad. of or about people or a group?

soft - ad. not hard; easily shaped; pleasing to touch; not loud?

soil - n. earth in which plants grow?

soldier - n. a person in the army?

solid - ad. having a hard shape with no empty spaces inside; strong; not in the form
of a liquid or gas?

solve - v. to find an answer; to settle?

some - ad. of an amount or number or part not
stated; not all?

son - n. a person’s male child?

soon - ad. not long after the present time; quickly?

sort - n. any group of people or things that are the same or are similar in some way;
a kind of something?

sound - n. fast-moving waves of energy that affect the ear and result in hearing; that
which is heard?

south - n. the direction to the right of a person facing the rising sun?