Phonology
Which branch of linguistics studies speech sounds and sound patterns?

Phonology.
What is the smallest unit of meaning in a language?
A morpheme.
Which branch of linguistics studies meaning?
Semantics.
What do we call two words that differ by only one sound and have different meanings?
Minimal pairs.
What type of morpheme can stand alone as a word?
A free morpheme.
What do we call words with similar meanings, such as big and large?
Synonyms.
What symbol is used to write phonetic transcriptions?
The International Phonetic Alphabet (IPA).
Is -ed in walked a free or a bound morpheme?
A bound morpheme.
What do we call words with opposite meanings, such as happy and sad?
Antonyms.