Modifiers matching announcement:

• sensitive,
• public,
• informal,
• major,
• bad,
• related,
• promotional,
• weather,
• important,
• urgent,
• economic,
• corporate,
• financial,
• general,
• personal,
• official,
• special,
• significant,

Simple categories matching informal:

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