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 assist¹ 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, navy³ 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 female⁴ 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 ownership⁵ of a business or company

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

she - pro². the girl or woman who is being spoken about

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

shell - v. to fire artillery⁶; 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. lasting⁷ 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."), probability⁸ ("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 enjoyment⁹ or education; something organized to be seen by the public

shrink¹⁰ - v. to make or become less in size, weight or value

sick - ad. suffering physically¹¹ or mentally with a disease¹² or other problem; not in good health

sickness - n. the condition of being in bad health