M - 43 combinations
347. mac and cheese = cheese + pasta
348. machine = tool + tool, boiler + chain, boiler + tool, boiler + wheel, chain + tool, tool + wheel
349. magic = double rainbow + life, life + rainbow
350. magma = lava + scientist, scientist + volcano
351. mailbox = box + letter, box + mailman, letter + metal, letter + steel, letter + wood, mailman + metal, mailman + steel, mailman + wood
352. mailman = human + letter, human + newspaper, letter + mailbox
353. manatee = cow + fish, cow + ocean, cow + sea
354. map = city + paper, continent + paper, hill + paper, lake + paper, land + paper, mountain range + paper, mountain + paper, ocean + paper, paper + river, paper + sea, paper + village
355. mars = desert + planet, planet + rust
356. marshmallows = campfire + sugar
357. mayonnaise = egg + oil
358. meat = animal + axe, animal + butcher, animal + sword, animal + tool, axe + chicken, axe + cow, axe + fish, axe + flying fish, axe + frog, axe + livestock, axe + pig, axe + shark, axe + swordfish, butcher + chicken, butcher + cow, butcher + fish, butcher + flying fish, butcher + frog, butcher + livestock, butcher + pig, butcher + shark, butcher + swordfish, chicken + sword, chicken + tool, cow + sword, cow + tool, fish + net, fish + tool, flying fish + net, flying fish + tool, frog + tool, livestock + sword, livestock + tool, net + piranha, net + shark, net + swordfish, pig + sword, pig + tool, shark + sword, shark + tool, swordfish + tool
359. medusa = hero + snake, human + snake, legend + snake, snake + story
360. mercury = heat + planet, planet + small
361. mermaid = fish + human, fish + legend, fish + magic, fish + swimmer, magic + swimmer
362. metal = fire + ore, heat + ore, ore + tool
363. meteor = air + meteoroid, atmosphere + meteoroid, day + meteoroid, meteoroid + night, meteoroid + sky
364. meteoroid = boulder + solar system, boulder + space, boulder + sun, rock + solar system, rock + space, rock + sun, solar system + stone, space + stone, stone + sun
365. microscope = bacteria + glass, bacteria + glasses, bacteria + safety glasses, glass + tool
366. milk = cow + farmer, cow + tool, cow + water, farmer + goat, goat + tool, goat + water
367. milk shake = ice cream + milk, ice cream + water, ice cream + yogurt
368. mineral = boulder + organic matter, earth + organic matter, hill + organic matter, mountain + organic matter, organic matter + rock, organic matter + stone
369. minotaur = cow + human, cow + legend, cow + story, cow + werewolf
370. mirror = glass + metal, glass + steel, glass + wood
371. mist = air + rain, air + steam, air + water
372. mold = bacteria + bread, bacteria + fruit, bacteria + vegetable, bread + time, fruit + time, time + vegetable
373. monarch = castle + human, excalibur + human
374. money = diamond + paper, gold + paper
375. monkey = animal + tree
376. moon = cheese + night, cheese + sky, earth + night, night + planet, night + stone, planet + sky, sky + stone, sky + time
377. moss = algae + boulder, algae + rock, algae + stone, boulder + grass, boulder + plant, grass + rock, grass + stone, plant + rock, plant + stone
378. moth = butterfly + candle, butterfly + flashlight, butterfly + lamp, butterfly + light, butterfly + moon, butterfly + night
379. motion = alchemist + river, alchemist + stream, alchemist + tornado, alchemist + wind, idea + wind, river + scientist, scientist + stream, scientist + tornado, scientist + wind
380. motorcycle = bicycle + combustion engine, bicycle + machine, bicycle + metal, bicycle + steam engine, bicycle + steel
381. mountain = hill + hill, big + earth, big + hill, earth + earthquake, earth + hill, earthquake + hill
382. mountain goat = goat + mountain range, goat + mountain
383. mountain range = mountain + mountain, continent + mountain
384. mouse = animal + cheese, barn + cheese, cheese + farm, cheese + house, cheese + wall
385. mousetrap = blade + mouse, cheese + metal, cheese + steel, cheese + wood
386. mud = earth + water, soil + water
387. mummy = corpse + fabric, corpse + pyramid, fabric + pyramid, human + pyramid
388. music = drum + musician, flute + musician, musician + sheet music
389. musician = drum + human, flute + human, human + music, human + sheet music