Theory:

A list of common synonyms for ready reference.
  

Words

Synonyms

Amazing

awesome, incredible, fascinating

Benefit

advantage, aid, assist

Brave

courage, fearless, valiant

Break 

crack, hole, gap

Cohesive

close-knit, united

Come 

appear, show, arrive, enter

Cunning

devious, foxy

Cut 

incision, wound, chip

Decide 

agree, establish, finalize

Destitute

insolvent, needy, penniless

Destroy 

eradicate, crush, damage

Deterioration

decline, degradation, depreciation

Do 

carry out, accomplish, make

Enormous

gigantic, mammoth, colossal

Fall 

decline, decrease, go down

Fertile

productive, fruitful, lush

Fly 

swoop, glide, float

Help 

serve, co-operate, aid, assist

Hide 

cover, conceal, shield

Hungry

starved, eager

Hurry 

haste, bustle, speedy action

Injured

damaged, harmed, wounded

Intelligent

wise, brainy, brilliant

Keep 

hold, carry, maintain

Kindle

start a fire, ignite, inflame

Loyal

ardent, faithful, trustworthy

Old

aged, ancient, venerable

Organization

arrangement, grouping, management

Partner

ally, associate, colleague

Polite

affable, cordial, considerate

Portion

share, fragment, allocation

Risky

dangerous, hazardous, perilous

Senseless

meaningless, pointless, ridiculous

Show 

demonstrate, exhibit, display

Sleepy

drowsy, sluggish, tired

Vacant

empty, unoccupied, deserted

Wet

damp, moist, soggy

Young

immature, new, budding

 
Important!
For an extensive list, click here.