WordWeb Online

1. Large outdoor signboard
   - billboard

1. Save up as for future use
   - stash, cache, lay away, hive up, squirrel away [informal], sock away [N. Amer, informal]
    
2. Get or gather together (a large number of something)
   "She hoarded a small fortune";
   - roll up, collect, accumulate, pile up, amass, compile

Derived forms: hoardings

Type of: hive away, lay aside, lay in, put in, salt away, save, save up, sign, signboard, stack away, stash away, store

Encyclopedia: Hoarding