Worksheet for learning prefixes and suffixes with word-definition matching exercise.

To solve the problem, we need to match each word in the "Word" column with its corresponding definition in the "Definition" column. We will use our understanding of prefixes and suffixes to determine the correct matches.

Definitions:

1. redo: do again
2. joyful: full of joy
3. helpless: without help
4. disappear: not, or the opposite of appear
5. weakness: being weak
6. underground: below the ground
7. dirty: having dirt
8. misbehave: behave badly
9. calmly: in a calm way
10. tallest: most tall
11. believable: able to believe
12. careful: full, or a lot of care
13. farmer: one who farms
14. preschool: before school

Solution:

#### 1. redo
- Definition: do again
- Prefix: "re-" means "again" or "back."
- Match: redo

#### 2. joyful
- Definition: full of joy
- Suffix: "-ful" means "full of."
- Match: joyful

#### 3. helpless
- Definition: without help
- Suffix: "-less" means "without."
- Match: helpless

#### 4. disappear
- Definition: not, or the opposite of appear
- Prefix: "dis-" means "not" or "opposite of."
- Match: disappear

#### 5. weakness
- Definition: being weak
- Suffix: "-ness" indicates a state or condition.
- Match: weakness

#### 6. underground
- Definition: below the ground
- Prefix: "under-" means "below."
- Match: underground

#### 7. dirty
- Definition: having dirt
- No specific prefix or suffix is needed here; it's a standalone word.
- Match: dirty

#### 8. misbehave
- Definition: behave badly
- Prefix: "mis-" means "wrongly" or "badly."
- Match: misbehave

#### 9. calmly
- Definition: in a calm way
- Suffix: "-ly" indicates an adverb (way of doing something).
- Match: calmly

#### 10. tallest
- Definition: most tall
- Suffix: "-est" indicates the superlative form (most).
- Match: tallest

#### 11. believable
- Definition: able to believe
- Suffix: "-able" means "can be done."
- Match: believable

#### 12. careful
- Definition: full, or a lot of care
- Suffix: "-ful" means "full of."
- Match: careful

#### 13. farmer
- Definition: one who farms
- Suffix: "-er" indicates a person who does something.
- Match: farmer

#### 14. preschool
- Definition: before school
- Prefix: "pre-" means "before."
- Match: preschool

Final Answer:

\[
\boxed{
\begin{array}{|c|c|}
\hline
\text{Word} & \text{Definition} \\
\hline
\text{redo} & \text{do again} \\
\text{joyful} & \text{full of joy} \\
\text{helpless} & \text{without help} \\
\text{disappear} & \text{not, or the opposite of appear} \\
\text{weakness} & \text{being weak} \\
\text{underground} & \text{below the ground} \\
\text{dirty} & \text{having dirt} \\
\text{misbehave} & \text{behave badly} \\
\text{calmly} & \text{in a calm way} \\
\text{tallest} & \text{most tall} \\
\text{believable} & \text{able to believe} \\
\text{careful} & \text{full, or a lot of care} \\
\text{farmer} & \text{one who farms} \\
\text{preschool} & \text{before school} \\
\hline
\end{array}
}
\]