Words That Start With B: Your Scrabble Cheat Sheet

Everyone wants to build a bountiful vocabulary. Between Words with Friends and crossword puzzles, you’ll blow away both buddies and rivals by boosting your usage of the letter B. Want to boast a battery of brilliant blog posts? Bandy about some B-words. B is the 2nd letter of the English alphabet, but B comes first in a bevy of beautiful, bewitching, and beneficial words! So, if you believe your vocabulary could be better, bolster it by boning up on words that begin with the letter B.
We’ve created this list of words for you, organized by the number of letters in each word. Many of these words have more than one meaning. For simplicity, we’ve only listed one definition for each word. Keep in mind, this word list doesn’t contain every single English word that starts with B; however, it’s a useful introduction to this very special letter.

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Here are some words that start with B [2-15 letter words]

15-Letter Words

bacteriological – Adjective | Pertaining to the study of bacteria as it relates to medicine, industry, and agriculture

biomechanically – Adverb | In regard to the mechanics of biological, especially muscular, activity

brokenheartedly – Adverb | In the manner of a person overcome with despair

bureaucratizing – Verb | Developing into a bureaucracy, a system known for specialization of functions, adherence to fixed rules, and a hierarchy of authority

14-Letter Words

bacteriologist – Noun | A scientist who studies bacteria as it relates to medicine, industry, and agriculture

bibliomaniacal – Adjective | Pertaining to an extreme attraction to collecting books

bioluminescent – Adjective | Pertaining to the light produced by living organisms

biomathematics – Noun | Math that is of special use to the fields of biology and medicine

13-Letter Words

baccalaureate – Noun | A bachelor’s degree given by colleges and universities

bacteriophage – Noun | Any virus that infects bacteria

balkanization –  Noun | The process of bing divided into small, quarrelsome units

believability – Noun | The quality of being reliable or credible

bibliographer – Noun | One who compiles a list of sources

12-Letter Words

bachelorette – Noun | A young, single woman

bachelorhood – Noun | The condition of being an unmarried man

backgrounder – Noun | An informal briefing, often given to reporters off-the-record

battleground – Noun | The location where a battle happens

11-Letter Words

backcountry – Noun | A remote, rural area

beachcomber – Noun | A person who searches the shore for salable jetsam, seashells, refuse, etc. 

beneficiary – Noun | A person designated to receive benefits through a trust or insurance policy

blameworthy – Adjective | At fault

10-Letter Words

babysitter – Noun | A person charged with caring for children during a short absence of parents

backgammon – Noun | A two-person board game played with dice and counters

backhanded – Adjective | Indirect, ambiguous in meaning

barophilic – Adjective | Thriving in atmospheres with high pressure

9-Letter Words

bacchanal – Noun | An enthusiastic reveler

backbiter – Noun | Someone who speaks ill of an absent party

balconied – Adjective | Possessing a balcony

ballerina – Noun | A female ballet dancer

8-Letter Words

backdoor – Adjective | Devious

backfire – Verb | To cause a result opposite the one intended

backhand – Noun | A stroke made with the back of the hand in the direction of the movement

backroom – Adjective | Behind-the-scenes, hidden

baritone – Noun | A male vocal part between tenor and bass

bequeath – Verb | To hand down through a will 

 7-Letter Words

babbitt – Noun | An alloy of tin used to decrease friction for bearings 

backlog – Noun | A queue of unperformed tasks or unprocessed materials 

bagpipe – Noun | An instrument consisting of a reed melody pipe and drone pipes, powered with air blown through a windbag by mouth or bellows

bailiff – Noun | An officer in a U.S. courtroom

bonanza – Noun | An extravaganza

brownie – Noun | A bar of moist chocolate cake

buyback – Noun | The buying back of its own stock by a company on the open market

6-Letter Words

babble – Verb | To vocalize unintelligibly 

baboon – Noun | A primate of the genus Papio

backer – Noun | A financier for a project, person, or organization

baffle – Verb | To confuse completely

banter – Verb | To exchange witty remarks

berate – Verb | To scold

5-Letter Words

baggy – Adjective | Loosely hanging

balmy – Adjective | Mild, soothing

banjo – Noun | A fretted instrument with a circular body and four or five strings

bawdy – Adjective | Lewd and indecent

blitz – Noun | An air raid

4-Letter Words

baft – Noun | A course, cotton-based, Indian fabric

bane – Noun | A source of ruin

barm – Noun | A yeast that forms on a fermenting malt liquor

burr – Noun | Something that clings, a hanger-on (also spelled bur) 

3-Letter Words

baa – Verb | To bleat like a sheep

bah – Interjection | An expression of disdain

bam – Noun | A loud thud

bap – Noun | A small, flat bread roll

2-Letter Words

be – Verb | To have objective existence

by – Preposition | Near

By looking at this list, you may be able to identify some common prefixes. Words that start with “bio-” often have something to do with living things. Words beginning with “bibl-” involve books. Understanding these linguistic patterns can help you to intuit what a word means, even when you don’t have a dictionary handy.

Use words beginning with B to bestow backhanded compliments or engage in bawdy banter. Belt out a baritone part or babble some blank verse. Once you’ve become the boss of this B-list, no word finder will ever bewilder you again. From by to bacteriological, you’ll be blessed with the ability to blab B-words with the best of them. 


  1. https://www.merriam-webster.com
  2. https://www.collinsdictionary.com
  3. https://www.dictionary.com
  4. https://word.tips/words-start-with/b/