While both "zealot" and "fanatic" describe someone with intense enthusiasm, there's a subtle but important difference. "Zealot" often implies a strong devotion to a cause, often religious or political, sometimes to the point of being unreasonable. "Fanatic," on the other hand, suggests an excessive and often uncritical enthusiasm for something, which can range from hobbies to ideologies. Zealots tend to be more focused on action, whereas fanatics might be more focused on passionate belief or obsessive behavior. Think of it this way: a zealot does things for their cause, while a fanatic believes in something intensely.

Let's look at some examples:

• Zealot: "He was a zealot for environmental protection, dedicating his life to activism and campaigning." (Meaning: He was extremely dedicated to environmental protection and actively worked towards it).

• Fanatic: "She's a fanatic about collecting vintage stamps; she spends hours researching and acquiring them." (Meaning: She is extremely enthusiastic and perhaps obsessed with collecting vintage stamps).

• Zealot (negative connotation): "The religious zealot preached hatred and intolerance towards those of different faiths." (Meaning: The intensely religious person spread negative views and intolerance).

• Fanatic (negative connotation): "His fanatic obsession with conspiracy theories led him down a rabbit hole of misinformation." (Meaning: His extreme and uncritical belief in conspiracy theories led him to believe false information).

Notice that both words can have negative connotations. While intense passion can be positive, the excessive nature implied by both "zealot" and "fanatic" can lead to harmful behaviors or beliefs. The key difference remains in the focus: action for a zealot, belief for a fanatic. Choosing the right word depends on the specific context and the nuance you want to convey.

Happy learning!