Modifiers matching return:

• complicated,
• tangible,
• complex,
• regular,
• monetary,
• periodic,

Simple categories matching monetary:

• attribute,
• project,
• reward,
• measure,
• instrument,
• form,
• variable,
• object,
• value,
• disturbance,
• information,
• terms,
• phenomenon,
• assets,
• metal,
• body,
• obligation,
• award,
• holding,
• aid,
• benefit,
• issue,
• currency,
• commodity,
• transaction,
• development,
• expense,
• incentive,
• coin,
• asset,
• amount,
• unit,
• source,
• yardstick,
• medium,
• return,
• symbol,
• token,
• machine,
• nature,
• aggregate,