Category Nuances for vault:

• subsurface,
• appurtenant,
• precast,
• secure,
• underground,
• sanitary,
• metal,
• special,
• inside,
• electrical,
• open,
• safe,
• remote,
• permanent,
• curved,
• gymnastic,
• fireproof,
• subterranean,
• fixed,
• working,
• concrete,
• critical,
• spatial,
• topped,
• important,
• electric,
• difficult,
• small,
• tight,
• complicated,
• private,
• cramped,
• architectural,
• closed,
• accessible,
• monumental,
• original,
• minor,
• ancillary,
• solid,
• restricted,
• flexible,
• convex,
• particular,
• legal,
• sensitive,
• pelvic,

Simple Categories for vault:

• structure,
• object,
• area,
• surface,
• arena,
• event,
• floor,
• space,
• room,
• location,
• item,
• enclosure,
• place,
• artefact,
• building,
• point,
• construction,
• facility,
• residence,
• installation,
• touch,
• housing,
• fixture,
• artifact,