- Personality & behavior – Vocabulary
- Personality & behavior – Collocations
- Feelings & emotions – Vocabulary
- Feelings & emotions – Collocations
- Thoughts, knowledge, & experience – Vocabulary
- Thoughts, knowledge, & experience – Collocations
- Communication – Vocabulary
- Communication – Collocations
- Likes, dislikes, & preferences – Vocabulary
- Likes, dislikes, & preferences – Collocation
- Relationships – Vocabulary
- Relationships – Collocations
- Work & effort – Vocabulary
- Work & effort – Collocations
- Medical – Vocabulary
- Medical – Collocations
- Legal – Vocabulary
- Legal – Collocations
- Finance – Vocabulary
- Finance – Collocations
- Academics – Vocabulary
- Academics – Collocations
- Travel – Vocabulary
- Travel – Collocations
- Celebrations – Vocabulary
- Celebrations – Collocations
- Entertainment – Vocabulary
- Entertainment – Collocations
- Rules & permission – Vocabulary
- Rules & permission – Collocations
- Conflict & peace – Vocabulary
- Conflict & peace – Collocations
- Time, space, & motion – Vocabulary
- Time, space, & motion – Collocations
- Positive & negative – Vocabulary
- Positive & negative – Collocations
- Nouns – Vocabulary
- Compound nouns – Vocabulary
- Adjective + noun – Collocations
- Verbs – Vocabulary
- Adverb + verb – Collocations
- Adverb + adjective – Collocations
- Words of foreign origin – Vocabulary
- Words that sound the same – Vocabulary
- Words that look the same – Vocabulary