Simple categories matching tidal:

• bay,
• creature,
• invertebrate,
• feature,
• structure,
• organism,
• tree,
• event,
• bivalve,
• process,
• wave,
• distortion,

Members with property tidal:

• tail,
• tails,
• crabs,
• star,
• bridge,
• lobster,
• wharf,
• shellfish,
• sun_star,
• starfish,
• mud_drape,
• salinity,
• clams,
• octopus,
• tsunami,
• filament,
• chiton,
• hibiscus,
• pier,
• jade_bay,
• storm_surge,
• tidal_tails,
• sea_wall,
• sea-star_starfish,
• oyster,
• abalone,
• platform,
• storm,
• sculpin,
• mudskipper,
• wave,
• breakwater,
• coral,
• herringbone,
• snail,
• optical_tail,
• mooring,