Denshi Jisho — Online Japanese dictionary

おち 1: slip; omission;
2: outcome; final result; the end;
3: (Usually written using kana alone) punch line (of a joke)
Noun 
おち 1: slip; omission;
2: outcome; final result; the end;
3: (Usually written using kana alone) punch line (of a joke)
Common word, Noun 
おつ 1: to fall down; to drop;
2: to fail (e.g. exam);
3: to crash; to degenerate; to degrade
Godan verb with tu ending, Intransitive verb 
から 1: (Archaism) Zen monk's waistcoat (a short, informal kasaya);
2: ring (usu. made of ivory) attached to this waistcoat;
3: netsuke; item attached to a netsuke
Noun 
げらく depreciation; decline; fall; slump
Common word, Noun, Suru verb 
しゃれ 1: joke; pun; witticism;
2: (Na-adjective) smartly dressed; stylish; fashion-conscious; refined
Common word, Na-adjective, Noun 
だらく depravity; corruption; degradation
Common word, Noun, Suru verb 
ぶらく 1: (Sensitive) hamlet; subunit of village;
2: burakumin area
Common word, Noun 
らくご rakugo story; (telling) a comic story
Common word, Noun 
らくさ a head (of water); a difference
Common word, Noun 
らっか fall; drop; come down
Common word, Noun, Suru verb 
おちど fault; error; guilt
Noun 
おちば fallen leaves; leaf litter; defoliation; shedding leaves
Noun, Suru verb, No-adjective 
おちる 1: to fall down; to drop; to fall (e.g. rain); to sink (e.g. sun or moon); to fall onto (e.g. light or one's gaze); to be used in a certain place (e.g. money);
2: to be omitted; to be missing;
3: to decrease; to sink;
4: to fail (e.g. exam or class); to lose (contest, election, etc.);
5: to crash; to degenerate; to degrade; to fall behind;
6: to become indecent (of a conversation);
7: to be ruined; to go under;
8: to fade; to come out (e.g. a stain); to come off (e.g. makeup); to be removed (e.g. illness, possessing spirit, name on a list);
9: to fall (into someone's hands); to become someone's possession;
10: to fall (into a trap); to fall (for a trick);
11: to give in; to give up; to confess; to flee;
12: to fall; to be defeated; to surrender;
13: to come to (in the end); to end in;
14: to fall (in love, asleep, etc.);
15: to swoon (judo);
16: to consent; to understand;
17: (Computer terminology) to crash; to freeze;
18: (of animals) to die;
19: to move to the depths
Irregular okurigana usage, Ichidan verb, Intransitive verb 
おとし 1: (Abbreviation) dropping; losing;
2: missing item; something one forgot to write down;
3: trap;
4: wooden protrusion from a Japanese door frame that fits a hole in the threshold, acting as a lock when closed;
5: conclusion (of a speech, etc.);
6: metallic bowl used to hold the charcoal in a wooden hibachi
Noun 
おとす 1: to drop; to lose; to let fall; to shed (light); to cast (one's gaze); to pour in (liquid); to leave behind;
2: to clean off (dirt, makeup, paint, etc.); to remove (e.g. stains or facial hair); to lose; to spend money at a certain place; to omit; to leave out; to secretly let escape;
3: to lose (a match); to reject (an applicant); to fail (a course); to defeat (in an election);
4: to lower (e.g. shoulders or voice); to lessen (e.g. production or body weight); to worsen (quality); to reduce (e.g. rank or popularity); to speak badly of; to make light of; to fall into straitened circumstances;
5: to fall into (e.g. a dilemma or sin); to make one's own; to have one's bid accepted; to force surrender; to take (e.g. an enemy camp or castle); to forcefully convince; to press for a confession; to deal with;
6: (Computer terminology) to download; to copy from a computer to another medium;
7: (Martial arts term) to make someone swoon (judo);
8: to finish a story (e.g. with the punch line);
9: to finish (a period, e.g. of fasting)
Godan verb with su ending, Transitive verb 
ならく hell; hades; eternity; theatre basement; theater basement
Noun 
もがり bamboo fence; extortion
Noun 
らくご dropping out of; straggling; falling out of the ranks
Noun, Suru verb 
らくご dropping out of; straggling; falling out of the ranks
Noun, Suru verb 
らくち falling to the ground
Noun 
らくば falling from a horse
Noun, Suru verb 
らっか falling petals
Noun 
ち度 おちど mistake; error
Common word, Noun 
ち葉 おちば fallen leaves; leaf litter; defoliation; shedding leaves
Common word, Noun, Suru verb, No-adjective 
ちる おちる 1: to fall down; to drop; to fall (e.g. rain); to sink (e.g. sun or moon); to fall onto (e.g. light or one's gaze); to be used in a certain place (e.g. money);
2: to be omitted; to be missing;
3: to decrease; to sink;
4: to fail (e.g. exam or class); to lose (contest, election, etc.);
5: to crash; to degenerate; to degrade; to fall behind;
6: to become indecent (of a conversation);
7: to be ruined; to go under;
8: to fade; to come out (e.g. a stain); to come off (e.g. makeup); to be removed (e.g. illness, possessing spirit, name on a list);
9: to fall (into someone's hands); to become someone's possession;
10: to fall (into a trap); to fall (for a trick);
11: to give in; to give up; to confess; to flee;
12: to fall; to be defeated; to surrender;
13: to come to (in the end); to end in;
14: to fall (in love, asleep, etc.);
15: to swoon (judo);
16: to consent; to understand;
17: (Computer terminology) to crash; to freeze;
18: (of animals) to die;
19: to move to the depths
Common word, Ichidan verb, Intransitive verb 

Found 502 words. Page one, two, three, four, five, six, seven, eight, nine, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

You can also

Look up kanji details for *落*.

Try a Yahoo Jisho search for *落* .
Try a Goo Jisho search for *落* .
Try a Google search for *落* .