Question

sort words according to the meanings of their prefixes.
prefix means not
unmarried
unlit
defang
detangle
unashamed
defrost
prefix means take out or off

Explanation:

• unmarried: "un - " is a prefix meaning "not". "Married" means having a spouse, so "unmarried" means not married.
• unfit: "un - " means "not". "Fit" means suitable or healthy, so "unfit" means not fit.
• unashamed: "un - " means "not". "Ashamed" means feeling guilty or embarrassed, so "unashamed" means not ashamed.
• defang: "de - " means "take out or off". "Fang" refers to a sharp tooth (especially of a snake or wild animal). So "defang" means to take out the fangs.
• detangle: "de - " means "take out or off". "Tangle" means a twisted mass. So "detangle" means to take out the tangles.
• defrost: "de - " means "take out or off". "Frost" refers to ice crystals. So "defrost" means to take off the frost.

Answer:

• Prefix means not: unmarried, unfit, unashamed
• Prefix means take out or off: defang, detangle, defrost