Modifiers matching celebration:

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

Simple categories matching annual:

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