Oh, what a lovely question! Let's paint a happy little picture here. Jeffrey could be like a walking dictionary if he knows a lot of words and their meanings, just like a dictionary does. Or he could be like a metaphor if he symbolizes something else beyond just being a walking dictionary. Either way, Jeffrey sounds like a fascinating person to know!
Oh, dude, that's like asking if a hot dog is a sandwich or not. Technically, a walking dictionary would be a metaphor because it's comparing Jeffrey to a dictionary without using "like" or "as." But hey, if you wanna get super technical, you could argue it's a simile if you say Jeffrey is like a walking dictionary. But like, who really cares, right?
it is neither, it is personification
Yes, "walking dictionary" is an example of a simile. This phrase is comparing someone's vast knowledge or ability to recall information to that of a dictionary, emphasizing their expertise in a particular subject.
A metaphor
A metaphor, a simile uses the words like or as.
that man
simile
simile
simile
simile and METAPHOR AND PERSONIFICATION AND CHEESE
simile
simile
Its a metaphor