to make a telephone call
打 · 5 strokes
Phonosemantic compound. 扌 represents the meaning and 丁 represents the sound.
电 · 5 strokes
Simplified form of 電, which depicts lightning (申) during a rainstorm (雨). The 雨 component was deleted for simplification.
话 · 8 strokes
Simplified form of 話. Phonosemantic compound. 讠 represents the meaning and 𠯑 represents the sound.