Final answer:
The 'definition' context clue can help determine the meaning of 'obsolete'.
Step-by-step explanation:
The type of context clue you would use to determine the meaning of 'obsolete' is the 'definition' context clue. This type of clue directly provides the meaning of the word. For example, in a sentence like 'Vinyl records have become obsolete since the rise of digital music', the word 'obsolete' is defined as 'no longer in use or no longer useful'.
Learn more about Context Clues