interesting; meaningful; enjoyable; fun
有 · 6 strokes
Depicts a hand (又) holding meat (肉). In Oracle script this character was written the same as the phonetically similar 又, but later the 肉 component was added to distinguish them.
意 · 13 strokes
Thought (意) is the sound (音) that comes from the mind (心). (Oversimplified for brevity. The 音 component in this character has a complicated history.)
思 · 9 strokes
Thought is associated with the head (囟) and heart (心). 囟 is also a phonetic component.