Modifiers matching celebration:

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

Simple categories matching annual:

• contest,
• grass,
• collection,
• plant,
• host,
• incentive,
• herb,
• celebration,
• weeds,
• expense,
• preparation,
• project,
• forage,
• flower,
• event,
• climber,
• wildflower,
• crop,
• grain,
• payment,
• vegetable,
• activity,
• publication,
• maintenance,
• income,
• fruit,
• endeavor,
• cereal,
• seed,
• fibre,
• show,
• fiber,
• legume,
• work,
• ceremony,
• festivity,
• process,
• holiday,
• occurrence,
• lake,
• festival,
• bonus,
• weed,
• species,
• brome,
• charge,
• social,
• vine,
• seedling,
• fee,
• fixture,
• system,
• pulse,
• clover,
• invoice,
• effort,
• reward,
• theme,