Word.ws English Dictionary

bulk up

/ˌbʌlk ˈʌp/

bulk up verb: to gain weight.

Verb

bulk up (third-person singular simple present bulks up, present participle bulking up, simple past and past participle bulked up)

  1. (intransitive) To gain weight.
  2. (transitive) To increase the weight of.
    Synonyms:
    hulk out
  3. To train the body with a high-calorie diet and intense weightlifting in order to increase the overall mass of the body, especially the muscles.
    • A review of studies done on runners and strength training showed generally positive impacts and no negative consequences. You won’t hulk out or bulk up just fine-tune some lean muscle in ways that running alone can’t do.2017 January 9, Molly Hurford, “Cross-Training Workouts Every Runner Should Try”, in MapMyRun, archived from the original on 18 Jun 2017

Synonyms of bulk up

Forms of bulk up

third-person singular presentbulks up
present participlebulking up
past participlebulked up
pastbulked up

Questions about bulk up

What does bulk up mean?
Bulk up means to gain weight.
What part of speech is bulk up?
Bulk up is a verb.
How do you pronounce bulk up?
Bulk up is pronounced /ˌbʌlk ˈʌp/.
What is the past tense of bulk up?
The past tense of bulk up is bulked up.

Words near bulk up in the dictionary

  1. bulk out
  2. bulk supplies
  3. bulk supply
  4. bulk technologies
  5. bulk technology
  6. bulk up
  7. bulk viscosities
  8. bulk viscosity
  9. bulk-add
  10. bulk-added
  11. bulk-adding

Source and license

Adapted from Wiktionary: bulk up (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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Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-bulk up.ogg.

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