Modifiers matching play:

• creative,
• therapeutic,
• informal,
• active,
• interactive,
• unstructured,
• outdoor,
• collaborative,
• expressive,
• strong,
• psychological,
• dramatic,
• quiet,
• messy,
• familiar,
• defensive,
• big,
• sexual,
• unlawful,
• preferred,
• online,
• rough,
• symbolic,
• dangerous,
• noisy,
• indoor,
• tactile,
• individual,
• complex,
• imaginative,
• special,
• instrumental,
• literary,
• motor,
• structured,
• world,
• sensory,
• free,

Simple categories matching collaborative:

• procedure,
• process,
• service,
• activity,
• association,
• job,
• effort,
• communication,
• enterprise,
• work,
• arrangement,
• proposal,
• entity,
• behaviour,
• observation,
• network,
• group,
• programme,
• relationship,
• skill,
• individual,
• event,
• tool,
• forum,
• play,
• space,
• practice,
• endeavour,
• linkage,
• structure,
• agreement,
• communications,
• measure,
• project,
• production,
• medium,
• works,
• artifact,
• task,
• exchange,
• art,
• component,
• interaction,
• scheme,
• content,
• action,
• document,
• piece,
• product,
• program,