There are two syllables like so: sis-ter.
Sister has two syllables. The syllables are sis-ter.
There are seven syllables.
The word 'sister' has two syllables: sis-ter. When learning how to think of words in syllables, speak the word and notice when you naturally 'break up' the word. As examples: Say the word 'two'. The word 'two' has one syllable. You do not have any natural breaks when you speak it. Now, say the word 'twofold'. The word 'twofold' has two syllables. You have a natural break in saying two--fold. (the dashes are used here to show there is a break) Say the word 'will', as in "I will go to bed." Will has no natural breaks. Now say the word 'willing'. Hear the pause between 'will-' and '-ing'. It has two syllables.
Daybreak has two syllables. The syllables are day-break.
There are three syllables. Break-a-ble.
You can break any combination of words into syllables. There are three syllables in 'good morning': Good-mor-ning.
There are two syllables. Ham-mock.
There are 2 syllables. Fold-ed.
Sister has two syllables. The syllables are sis-ter.
The word whistle has two syllables. The syllables in the word are whist-le.
There are two syllables like so: on-to.
A/me/ri/can - 4 syllables