To find the "odd one out" in each category based on pronunciation, let's analyze the words in each column:

### Column 1
1. **collection** (cuh-LEK-shun)
2. **population** (pop-yuh-LAY-shun)
3. **culture** (CUL-chur)
4. **certain** (SER-tin)
5. **looked** (LOOKD)
6. **so** (SOH)
7. **uniform** (YOO-nuh-form)
8. **invite** (in-VIGHT)

**Odd one out:** **6. so** - It is a single-syllable word, while all others have multiple syllables.

### Column 2
1. **tradition** (truh-DISH-un)
2. **volunteer** (vol-uhn-TEER)
3. **computer** (kuhm-PYOO-tur)
4. **compare** (kuhm-PAIR)
5. **called** (KAWLD)
6. **expensive** (ik-SPEN-siv)
7. **education** (ed-joo-KAY-shun)
8. **alike** (uh-LIKE)

**Odd one out:** **5. called** - It has a different vowel sound and is a past tense verb, while others are either nouns or adjectives.

### Column 3
1. **exhibition** (ex-ih-BISH-un)
2. **money** (MUN-ee)
3. **community** (kuh-MYOO-ni-tee)
4. **control** (kuhn-TROL)
5. **laughed** (LAFT)
6. **music** (MYOO-zik)
7. **future** (FYOO-chur)
8. **risen** (RIZ-un)

**Odd one out:** **5. laughed** - This is a past tense verb and has a distinct vowel sound compared to the others, which are nouns/adjectives.

### Column 4
1. **question** (KWEST-shun)
2. **offer** (AW-fur)
3. **unite** (yoo-NIGHT)
4. **encourage** (in-KUR-ij)
5. **stopped** (STOPD)
6. **basic** (BAY-sik)
7. **student** (STYOO-dent)
8. **find** (FIND)

**Odd one out:** **5. stopped** - This has a different vowel sound and is a past tense verb, while many others are nouns or present tense verbs.

### Summary of Odd Ones Out:
- Column 1: **so**
- Column 2: **called**
- Column 3: **laughed**
- Column 4: **stopped**