Blank verse mainly refers to blank verse and blank verse without rhyme.
Free verse mainly refers to free verse that is not bound by metrical rules.
A blank poem:?
An English metrical poem. Each line consists of five long and short steps-ten syllables, and each line has no sound and no rhyme. All feet adopt iambic pentameter. Poems that do not rhyme are called blank poems or white poems.
It is often used in drama and narrative poetry. Shakespeare's plays and Milton's Paradise Lost are both written in blank verse. Rhyming poems are called rhyming poems. Blank verse is different from free verse. Although blank verse does not rhyme, it has a fixed rhythm, and the promotion and suppression of pentameter is the most common.