1 very large

2 huge

3 tremendous

4 gigantic

1 Cancer (star sign)

1 Cancer (constellation and sign of the zodiac)

1 arduous

2 terrible (task)

3 very difficult

4 formidable

1 giant

1 lit. things are not separated according to their size (idiom)

2 fig. to deal with any matter, regardless of its importance

1 untold pain and suffering (idiom); deeply scarred for life

1 shrimp soldiers and crab generals (in mythology or popular fiction, the army of the Dragon King of the Eastern Sea)

2 useless troops (idiom)