American Heritage Dictionary
(2)
Century Dictionary
(3)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
'There was a lot of pressure in making the movie - even the way it came out you could see it was a very free-associative, crazy movie, and David was under a tremendous amount of pressure.— GreenCine Daily
To achieve this goal, Gibbs creates tools that are naturally intuitive, graphically interactive, extremely visual, associative, and just plain enjoyable to use.— ThomasNet Industrial Newsroom - Today's New Product News
Because they are associative, if the model is changed, or the section plane is updated, the 2D profiles, hatches, and fills are also updated automatically.
After making the leap with his 1999 film Variations from formally mediated abstractions into observational slices of poetic time, linked by a non-associative editing style, Dorsky spent nearly a decade making, well, variations on this style.— GreenCine Daily
Some brainstorming tools ask you questions, while others rely on a variety of proven associative or lateral thinking techniques.— Stepcase Lifehack

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.