✅ Fireworks are explosive devices used for display, creating bright lights and loud noises in the sky (We watched the fireworks on New Year’s Eve).

✅ Pyrotechnics refers to the art of making or displaying fireworks, and can also mean impressive technical skills in a performance (The concert included some amazing pyrotechnics).

✅ Both words relate to the use of explosive visual effects for entertainment.

✅ Fireworks specifically refers to the actual devices and displays, while pyrotechnics can also describe showy and impressive feats in other contexts (The fireworks lit up the sky; The magician's pyrotechnics were stunning).

✅ Smoothly means without difficulty or problems, often describing a process that goes well (The meeting went smoothly).

✅ Swimmingly means very well or successfully, often used to describe a situation that progresses without issues (The project is going swimmingly).

✅ Both words describe situations that proceed without any hitches.

✅ Smoothly is more commonly used in everyday speech, while swimmingly is a bit more playful and less formal (Everything went smoothly at the event; The preparations are going swimmingly).

✅ Grind means to crush something into small particles, typically using a machine or by rubbing (I need to grind the coffee beans for my morning brew).

✅ Pulverize means to reduce something to powder, often using force (Pulverize rocks into dust).

✅ Both words involve breaking something down into smaller pieces.

✅ Grind often implies a repetitive action that results in smaller pieces, while pulverize suggests completely breaking something down (Grind the spices; The mortar and pestle can pulverize the herbs).