Word.ws English Dictionary

bt

bt is the abbreviation of but.

Meaning of but

Conjunction

but

  1. However, although, nevertheless, on the other hand (introducing a clause contrary to prior belief or in contrast with the preceding clause or sentence).
    • She is very old but still attractive.
    Synonyms:
    yet, although, ac
  2. On the contrary, rather (as a regular adversative conjunction, introducing a word or clause in contrast or contradiction with the preceding negative clause or sentence).
    • I am not rich but [I am] poor. Not John but Peter went there.
  3. (colloquial) Used at the beginning of a sentence to express opposition to a remark.
    • But I never said you could do that!
  4. Except that (introducing a subordinate clause which qualifies a negative statement); also, (archaic) with omission of the subject of the subordinate clause, acting as a negative relative, "except one that", "except such that".
    • I cannot but feel offended.
  5. (colloquial) Used to link an interjection to the following remark as an intensifier.
    • Wow! But that's amazing!
  6. (archaic) Without it also being the case that; unless that (introducing a necessary concomitant).
    • It never rains but it pours

See all 21 meanings of but

Noun (1) capitalized: BT

BT (countable and uncountable, plural BTs)

  1. (abbreviation, initialism) Initialism of blood test.
  2. (abbreviation, initialism) Initialism of bench trial.
  3. (Judaism, abbreviation, initialism) Initialism of baal teshuva.
  4. (abbreviation, initialism) Initialism of Bacillus thuringiensis toxin.
  5. (abbreviation, initialism) Initialism of botulinum toxin.
  6. (abbreviation, initialism) Initialism of bluetongue (“disease of ruminants”).

Proper noun capitalized: BT

BT

  1. (abbreviation, initialism) Initialism of British Telecom.
  2. (abbreviation, initialism) Initialism of BitTorrent.
  3. (abbreviation) Abbreviation of Bluetooth.
  4. (abbreviation) Abbreviation of Banten: a province of Indonesia.

Noun (2) capitalized: Bt

Bt (usually uncountable, plural Bts)

  1. (abbreviation, usually) Abbreviation of baronet, a title used after a holder's surname.
    • Sir John Spencer-Smith, Bt
    Synonyms:
    Bart
  2. (usually) Bacillus thuringiensis, a species of bacteria used for biological control of insects.
    Synonyms:
    B. thuringiensis, Bacillus thuringiensis
    1. (abbreviation, ellipsis, usually) Ellipsis of Bt toxin.
  3. (abbreviation, initialism, usually) Initialism of botulinum toxin.
  4. (abbreviation, usually) Abbreviation of biotite.
    • (A) Plane-polarized light and (B) back-scattered electron (BSE) images. The pseudomorph (Crd) is made up of Grt + Qtz + Ky rodlets + micas flakes (mainly biotite, Bt).2017, J. Theo Kloprogge, Robert Lavinsky, “Introduction: Geological Examples”, in Photo Atlas of Mineral Pseudomorphism, Amsterdam: Elsevier, →ISBN, page 88

Synonyms of bt

Antonyms

Forms of bt

pluralBTs
pluralBts
alternative formBt.
alternative formB.t.
alternative formBT

Words formed from bt

Questions about bt

What does bt mean?
Bt means bacillus thuringiensis, a species of bacteria used for biological control of insects.
What is bt the abbreviation of?
Bt is the abbreviation of but.
What part of speech is bt?
Bt can be a noun or a proper noun.
What is the plural of bt?
The plural of bt is BTs.

Words near bt in the dictionary

  1. BSSR
  2. BST
  3. BSTs
  4. BSW
  5. BSWs
  6. bt
  7. BTA
  8. BTAIM
  9. BTAS
  10. BTB
  11. Btb.

Source and license

Adapted from Wiktionary: bt (page history and authors); BT (page history and authors); Bt (page history and authors); but (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “bt.” Word.ws, https://word.ws/bt. Based on Wiktionary, CC BY-SA 4.0.