- [ ] back and front - [ ] backlighting - [x] balcony - [ ] barb - [ ] barge - [ ] barn - [ ] barren - [ ] barter - [ ] basin - [x] be absorbed in - [x] be accustomed to - [x] be addicted to - [x] be aware of - [ ] be bound to - [ ] be bound up with - [ ] be capable of - [ ] be characteristic of - [ ] be comparable to - [ ] be eager to - [ ] be engaged in - [ ] be essential to - [ ] be exposed to - [ ] be familiar with - [x] be involved in - [ ] be obliged to - [ ] be on edge - [x] be related to - [x] be relevant to - [ ] be responsible for - [ ] be similar to - [ ] be subjected to - [ ] be superior to - [ ] be supposed to - [x] be tired of - [ ] be traced to - [x] beaver - [ ] before long - [ ] benign - [ ] besiege - [x] biography - [ ] bland - [ ] bleach - [ ] blip - [x] blizzard - [x] board - [ ] bog - [ ] bold - [x] bond - [ ] botany - [ ] boulder - [ ] bound - [x] boundary - [ ] brass - [x] break down - [x] break through - [x] brighten - [x] bring up - [ ] brittle - [ ] brush - [ ] bubble - [ ] buck - [ ] buckle - [x] bud - [x] budget - [x] build up - [ ] bulb - [ ] bulk - [ ] bulletin - [ ] bump - [ ] bureau - [ ] burgeon - [ ] burrow - [ ] burst out - [x] by accident - [ ] by all means - [ ] by and by - [x] by chance - [ ] by far - [ ] by means of - [ ] by no means - [ ] by virtue of