very important or necessary (adj)
essential
able to hurt or damage (adj)
harmful
something that is useful (adj)
helpful
to show the meaning or truth of something more clearly, especially by giving examples (v)
illustrate
a set of lines, colors, or shapes that repeat in a regular way (n)
pattern
to stop something from happening or stop someone from doing something (v)
prevent
without end of restriction (adj)
unlimited
not natural; made by people; man-made (adj)
artificial
break down (phr v)
to stop working
sent or accessed by means of a computer or other device (adj)
electronic
a change of position or place (n)
movement
any thing that you can see or touch that isn't alive (n)
object
belonging to or used by or for just one person (adj)
personal
energy, usually electricity, used to provide light, heat, etc (n)
power
not flat; having depth, length, and width (adj)
three-dimensional
What is the meaning of the prefix 'de-'
reverse or go down (decrease, dehumanize, deforest, deport)
