The phrase "she is my guardian angel" is a metaphor. This is because it directly describes someone as having the qualities of a guardian angel without using "like" or "as" to make a comparison.
No
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
As quick as a wink is a simile. ----