n. 1
A mixture of often unrelated things.
My thoughts were all in a jumble.
n. 2
Items for a rummage sale.
v. 1
To mix or confuse.
v. 2
To meet or unite in a confused way.
I tried to study, but in my half-awake state, all of the concepts seemed to jumble together.

Related words

Forms

Plural: jumbles → hodgepodges, mish-mashes, miscellanies, patchworks…
Past participle: jumbled
e.g. jumbled → scrambled, confused, mixed, confounded…

patchwork In prehistory, Sahara was a patchwork of rivers and swamps.
miscellany Only if you put up a different sign can you become a miscellany store.
hodgepodge U.S. cuisine is a hodgepodge of immigrant traditions.
clutter Let's keep the balcony free of clutter and trash.
welter Without a word, he had disappeared into the welter of the noonday crowd.

Use in printed books, per decade from 1850 to 2019.

3 letters: mix¹
4 letters: mess¹, hash¹, olio
5 letters: chaos², blend¹, muddy², ravel²
6 letters: puzzle², medley², mingle², motley², flurry², muddle², baffle², welter², fuddle², ragbag, jumbal
7 letters: mixture², confuse², shuffle², clutter², smother², melange², farrago, perturb², fluster², embroil²
8 letters: disorder³, compound², scramble², disarray³, confound², pastiche², unsettle³, entangle³, bewilder³, befuddle³, oddments
9 letters: confusion³, patchwork², potpourri³
10 letters: miscellany⁴, hodgepodge², salmagundi, hotchpotch, disconcert³, disarrange, discompose
11 letters: smorgasbord³, gallimaufry

The small number after each word is its number of syllables (chaos² = 2 syllables).