Suprasegmental features are features which go beyond an individual segment.
Stress
A stressed syllable is louder and carries more emphasis.
explanation
[ɛksplə'neɪʃən], telegraphic[tɛlə'gɹæfɪk]
Tone
Tonal Languages (pink: pitch-accent languages, red: tone languages)
In some languages, the tone of a syllable matters for the meaning of a word. Pitch-accented languages: stressed syllables have high tone.
Length
Length is the time taken to articulate a segment.