To see the letter B in your dream is a pun on “to be”. Perhaps the dream is telling you to “let it be”.

Interpretation of dreams by B

Baby crow	Back pain
Back	Backbiting
Backbone	Backgammon
Backside	Bactrian camel
Bad look	Bag
Bagpipe	Bairam
Baked bricks	Baker
Baklava	Balancer
Balcony	Baldheadedness
Balding	Baldness
Ball of thread	Ball
Ballista	Balloon
Banal	Banana
Band	Bangle
Banishment	Banjo
Bank draft	Banknote
Bankruptcy	Banner
Banquet	Bar
Barber	Barefoot
Barkeeper	Barking of a jackal
Barking	Barley
Barman	Barn
Bartender	Base
Baseball	Bashfulness
Basin	Basket weaver
Basket	Basketball
Basmalah	Bat
Bath	Bathhouse
Bathroom	Battering ram
Battlefield	Battlement
Bay-color	Bay
Beacon	Beads salesman
Beads	Beak
Beam	Beans
Bear trainer	Bear
Beard	Beast
Beating	Beautician
Beautify	Beauty mark
Beauty	Beaver
Bed cover	Bed
Bedchamber	Bedmate
Bedroom	Beehive
Beekeeper	Beer
Bees	Beetle
Beggar	Begging
Behavior	Beheading
Behind	Belching
Belittlement	Bell
Belligerence	Bellows
Belt	Bench
Bend	Benediction
Benevolence	Bequeath
Bequest	Bereavement of one’s child
Berries	Besiege
Besmear	Bethlehem
Betrayal	Betrothal
Betting	Beverages
Bewitch	Bias
Bible	Bicuspids
Bigfoot	Bill of exchange
Bill	Billy goat
Binoculars	Bird’s nest
Bird	Birds salesman
Birth control	Birth
Birthmark	Bishop
Bitch	Bite off
Bite	Biting on one’s tongue
Bitter almond	Bitter fruits
Blabber	Black hair
BIack magic	Black mud
Black pepper	Black Stone
Black	Blackbird
Blackboard	Blackout
Blacksmith	Blade
Blame	Blanket
Bleacher	Blear-eyed
Bleed	Bleeding nose
Bleeding	Blessed Tree
Blessings	Blind in one eye
Blindness	Blintz
Blister beetle	Blithe
Blond	Blood disease
Blood letting	Blood ties
Blood	Bloodsucker
Blossoms	Blotch
Blouse	Blow one’s nose
Blow	Blowing into a vagina
Blowing into the fire	Blowing into the ground
Blowing the trumpet	Blowing
Blue	Blunder
Blushing	Boast
Boat	Body lice
Body Snatcher	Body
Bodyguard	Boil
Boiled eggs	Balled vegetables
Boiler	Boiling water
Bolter	Bond
Bondage	Bondman
Bone breaker	Bone marrow
Bones	Bonesetter
Book dealer	Book
Bookbinder	Bookbinding
Bookseller	Bookstore
Booty	Bootis
Boredom	Borer
Borrowing	Bosom friend
Bosom	Bottle
Bounce	Bound
Bow	Bowels
Bower	Bowing in prayers
Bowl	Box
Boy	Brace
Bracelet	Bragging
Braiding	Brain
Bran	Brand
Brass founder	Brass
Braying	Brazier
Breach of a contract	Breach
Bread	Break
Breakfast food	Breaking wind
Breast Feeding	Breast
Breathing difficulty	Brewery
Bribe	Brick vendor
Brick kiln	Bricks
Bridal dower	Bride
Brideg room	Bridge of the Day of Judgement
Bridge	Bridle
Broadcaster	Brocade
Broiling meat	Broker
Brooder	Brook
Broom	Brother in-law
Brother	Brown skin
Bucket	Buckthorn tree
Buffalo	Bug
Build	Builder
Building	Bull
Bulldozer	Bullet proof jacket
Bullfight	Bully
Bummer	Bunch of dates
Bunch of grapes	Bunch
Bundle	Buoyancy
Burden	Burglary
Burial ground	Burial
Buried alive	Burn
Burning Coal	Burning Incense
Burnishing	Burp
Burping	Burrow
Burrowing	Bushel
Business association	Business loss
Bustard	Busy
Butcher block	Butcher’s knife
Butcher	Butler
Butter	Butterfly
Butterskin	Butting
Buttocks	Button
Buttonhole	Buyer
Buying	Byre