I live in a temperate climate 42 degees south latitude comaparble to Boston. Fall is in common use mainly in the US, the rest of the world calls this season Autumn

from the Macquarie Dictionary: see #43

autumn
/'awtuhm/ noun
1. the season of the year between summer and winter;( in the Southern Hemisphere, usually understood to include March, April and May.)
2. a period of maturity passing into decline. [L autumnus; replacing ME autompne, from OF]

fall
/fawl/ verb (fell , fallen , falling ) --verb (i)
1. to descend from a higher to a lower place or position through loss or lack of support; drop.
2. to come down suddenly from a standing or erect position: to fall on one's knees.
3. to become less or lower: the temperature fell ten degrees.
4. to hang down; extend downwards: her hair falls to her waist.
5. to be cast down, as the eyes.
6. to succumb to temptation.
7. to lose high position, dignity, character, etc.
8. to succumb to attack: the city fell to the enemy.
9. to be overthrown, as a government.
10. to drop down wounded or dead; be slain: to fall in battle.
11. to come as if by dropping, as stillness, night, etc.
12. to come by lot or chance: their choice fell upon him.
13. to come by chance into a particular position: to fall among thieves.
14. to come to pass; occur; happen: Christmas falls on a Monday this year.
15. to have proper place: the accent falls on the first syllable.
16. come by right: the inheritance fell to the only surviving relative.
17. (of speech, etc.) to issue or proceed: the words that fall from his lips.
18. to lose animation, as the face.
19. to slope, as land.
20. to be directed, as light, sight, etc., on something.
21. to come down in fragments, as a building. --verb (copular)
22. to pass into some condition or relation: to fall asleep, in love, into ruin.
23. to become: to fall sick, pregnant, vacant, due. --verb (t)
24. to fell (trees, etc.) --noun
25. the act of falling, or dropping from a higher to a lower place or position; descent, as of rain, snow, etc.
26. the quantity that descends.
27. a becoming less; a lowering; a sinking to a lower level.
28. the distance through which anything falls.
29. (usually plural) a cataract or waterfall.
30. downward slope or declivity. 31. a falling from an erect position, as to the ground: to have a bad fall. 32. a hanging down. 33. a succumbing to temptation; lapse into sin. 34. surrender or capture, as of a city. 35. proper place: the fall of an accent on a syllable. 36. Wrestling a. the fact or a method of being thrown on one's back by an opponent and held down with both shoulders on the canvas for a specific period of time, usually a count of three; a pinfall. b. a bout, or one of the best of three victories which go to make up a bout: to try a fall. 37. a loosely hanging veil, or the like. 38. a woman's hairpiece with long, loose hair. 39. a piece of leather at the end of a whiplash to which the cracker is attached. 40. Machinery the part of the rope of a tackle to which the power is applied in hoisting. 41. (plural) Nautical the apparatus used in lowering or hoisting a ship's boat. 42. Hunting-->deadfall. 43. Chiefly US autumn. 44. a stand of trees suitable for felling.
--phrase 45. fall about , Colloquial to laugh immoderately.