In poetry, an iamb is a metrical foot (a group of syllables) that has one UNSTRESSED syllable followed by a STRESSED syllable. For example, the word remark is an example of an iamb because re is an unstressed syllable and mark is a stressed syllable.
There are different types of iambs, and they are classified according to the number of iambs that there are per line in a poem: dimeter (two iambs per line), trimeter (three iambs), tetrameter (four iambs), pentameter (five iambs) and hexameter (six iambs).
Here's each line matched to the type of meter it contains:
Iambic trimeter
- The two were still but one, = 3 iambs
- Nor for itself hath any care, = 3 iambs
Iambic pentameter
- My mother bore me in the southern wild, = 5 iambs
- Like Honus Wagner or like tyrus Cobb. = 5 iambs
- 'Tis morning; and the sun with ruddy orb = 5 iambs
Iambic tetrameter
- Is this a holy thing to see, = 4 iambs
- The wind blew high, the waters raved, = 4 iambs
- It powders all the Wood. = 4 iambs