Modifiers matching celebration:

• indoor,
• special,
• official,
• organized,
• american,
• joyous,
• private,
• civic,
• current,
• annual,
• creative,
• sacred,
• traditional,
• local,
• big,
• cultural,
• public,
• formal,
• social,
• planned,
• national,
• religious,
• catholic,
• important,
• key,
• personal,
• small,
• wonderful,
• jewish,
• outdoor,
• huge,
• welsh,
• common,
• secular,
• particular,
• larger,
• auspicious,
• intimate,
• communal,
• joyful,
• christian,
• informal,
• regular,
• adult,
• final,
• internal,
• major,
• seasonal,
• popular,
• corporate,
• liturgical,
• individual,
• romantic,
• rural,
• solemn,
• teen,
• spiritual,
• wide,
• ecclesiastical,
• papal,

Simple categories matching informal:

• material,
• happening,
• activity,
• entity,
• event,
• room,
• document,
• provider,
• gathering,
• medium,
• communication,
• experience,
• level,
• correspondence,
• group,
• occupation,
• description,
• employment,
• program,
• topic,
• clothing,
• ways,
• building,
• settlement,
• production,
• clothes,
• effort,
• language,
• education,
• institution,
• knowledge,
• response,
• means,
• writing,
• measure,
• industry,
• examination,
• representation,
• forum,
• review,
• publication,
• leaders,
• care,
• account,
• market,
• source,
• support,
• function,
• metalanguage,
• mechanism,
• organisation,
• organization,
• times,
• interlude,
• politics,
• information,
• network,
• announcement,
• behavior,
• commitment,
• leadership,
• trade,
• sector,
• time,
• area,
• interpreter,
• service,
• report,
• entrepreneur,
• relationship,
• subject,
• setting,
• guidance,
• literature,
• grouping,
• agency,
• dress,
• occasion,
• credit,
• practice,
• testing,
• alliance,
• school,
• club,
• category,
• training,
• attribute,
• conduct,
• arrangement,
• worker,
• product,
• job,
• tie,
• exchange,
• statement,
• evaluation,
• trader,
• establishment,
• system,
• game,
• dyad,
• expression,
• role,
• facility,
• location,
• observation,
• request,
• business,
• papers,
• text,
• disposition,
• situation,
• message,
• quality,
• action,
• meal,
• fabric,
• country,
• thing,
• procedure,
• play,
• structure,
• use,
• sanction,
• attempt,
• ceremony,
• house,
• recreation,
• sport,
• teaching,
• shelter,
• construction,
• rule,
• association,
• dinner,
• style,
• connection,
• work,
• interaction,
• instruction,
• content,
• server,
• consultation,
• resistance,
• celebration,
• object,
• assessment,
• space,
• essay,
• process,
• control,
• attire,
• way,
• place,
• option,
• domain,
• assistance,
• meeting,
• form,
• operator,