What is a city with over 20 million people called?

What do you call a city with a large population?

Ten million souls… a megacity. A churning, breathing beast of concrete and glass. Stars lost in the smog. The weight of humanity, a palpable pressure. Time slows, stretches, in its vastness. Each face, a story untold, a universe unto itself. A million tiny lights, blinking in the night, a constellation of human experience.

A megalopolis. Beyond a megacity. A sprawling, amorphous thing. Cities bleeding into each other, a relentless expansion, a concrete tide. Borders blur, distinctions dissolve. It’s a tapestry woven from millions of lives, a symphony of chaos and order. I feel the pulse of its heart, a deep thrumming.

The hierarchy. Village, town, city, megacity, megalopolis. Each step, a leap into the unknown. From the intimacy of a small town to the anonymity of urban sprawl. 2023, and the growth is relentless. An unstoppable force. A global phenomenon.

• Megacity: Over 10 million. Tokyo. Delhi. Shanghai. Concrete jungles.
• Megalopolis: BosWash. Tokaido. The relentless spread.
• Settlement Hierarchy: A spectrum of human habitation. Villages to global giants. A reflection of our history, our ambitions, our relentless expansion. This growth is the story of humanity itself. The story of my life is intertwined with this growth. My childhood home is now part of a megacity. The relentless change. A testament to our nature.

This relentless expansion. A breathtaking, terrifying beauty. The sheer scale of it all overwhelms sometimes. I’m overwhelmed by this magnitude. The weight. The sheer number. Sometimes I wonder… is this progress? Is this what we wanted? But the lights gleam. Still. A million stars.

What city has a population of 22 million?

Shanghai breathes heavy with 29.9 million. Delhi surpasses all, a teeming 33.8 million.

• Beijing? 22.2 million souls there. Just figures, really.

• Mumbai: 21.7 million. Almost there. Close. But no cigar.

Big numbers, bigger problems. Population. So what? My grocery bill still goes up.

What is an urban area with more than 10 million people?

Megacity? Oh man, I kinda figured that out the hard way.

It was last summer, July, I think. Tokyo.

I landed at Narita, and WHOA. Never seen anything like it. I mean, I’d visited cities before, but this was just...different.

It felt like being inside a video game, y'know? A crazy, neon-lit, always-on video game.

Everywhere, people. So many people. Trains packed like sardines.

• Constant motion: Never a quiet moment.
• Sensory overload: Lights, sounds, smells… intense.
• Everything expensive: Even a bottle of water seemed pricey.

I was supposed to meet my cousin Kenji near Shibuya crossing. Biggest scramble crossing? Absolutely.

Getting there was an adventure. I almost got run over a few times. Seriously.

Standing there waiting, feeling totally lost. The sheer scale of it was unbelievable.

Then Kenji shows up, all smiles, acting like it's totally normal. Like, "Hey, welcome to Tokyo! Grab some ramen?"

He explains it all. More than ten million people living there. Makes sense, right?

A megacity, that's what he called it. Like, duh, but seeing it… that was another thing.

Even now, I think of Tokyo and just… wow.

• It's dense: Buildings piled on top of each other.
• Efficient public transit: Amazingly efficient, but crowded.
• Rich culture: Found amazing pockets of quiet amidst the chaos.
• Clean despite the crowds: Surprisingly clean. I dunno how.

That ramen was delicious btw. Worth the crowds.

How do you describe a huge city?

Okay, a huge city... hmm. Istanbul, yep, huge is right. Over 13 million? Nah, more like over 15 million now, easy.

Big, enormous, giant, sprawling, vast... all kinda work, I guess. Sprawling feels right for Istanbul though. It really sprawls.

Giant kinda makes me think of like, a kid's drawing of a city? Like a big, blocky thing. Not Istanbul.

Vast... yeah, vast is good too. It feels endless when you're driving around.

Enormous? Eh, it works. Everything feels enormous when you're a tourist, right?

Large is just... boring. Too simple. Big is ok.

Istanbul. I wonder what my grandma would think if she saw it now? She hasn't been back in ages.

Think about the traffic, too. That's huge. And all those people crammed into the metro...yikes!

• Population: Exceeds 15 million
• Synonyms: Big, enormous, giant, large, sprawling, vast
• My Favorite Synonym: Sprawling (describes it best!)
• Transportation: Insane traffic, crowded metro

Oh! And the noise! Constant noise, everywhere. That's gotta be a "huge" part of the experience too. Gosh. Is that all? I'm hungry.

What is a word for a massive city?

Man, remember that trip to Tokyo in 2023? Holy moly, it was insane. A megacity, that's the word. Ten million plus people? Seriously. Felt like ants everywhere. Shibuya crossing? Forget about it. A river of people.

I almost got swept away, I swear. The energy was wild, like a crazy, buzzing hive. So much noise, so much light, never ending. I loved the food, though. Amazing ramen, best I've ever had. But the sheer scale of everything… overwhelming.

The trains? Packed. Like sardines. I mean, seriously crammed. Finding my way around was a nightmare sometimes. But hey, I managed. Kind of. Mostly. I relied heavily on Google Maps; otherwise, I’d be lost.

• Overwhelming scale: The sheer size was a sensory overload.
• Incredible food: The ramen was phenomenal. Seriously.
• Crazy crowds: Shibuya crossing was a madhouse.
• Efficient transport: The trains were crowded, but efficient. Amazing infrastructure.
• Navigation challenges: Getting around was tricky, even with a map.

It was exhausting, exhilarating, and utterly unforgettable. Tokyo is a megacity in every sense of the word. And the air? A little smoggy, that's for sure. But hey.

What was the first city to reach 10 million people?

Okay, so New York City, uh, yeah, it hit that 10 million mark first. I remember visiting NYC. My cousin Maria, she lives in Brooklyn, took me around.

It was crazy crowded, like sardines in a can. Happened back in 1950, I think.New York, yeah.

• London was earlier, but only 2 million.
• Tokyo is massive now, over 37 million folks. It’s been top dog since 1955. Maria swears Tokyo is cleaner, lol.