guesstimate

• guestimate

Blend of guess +‎ estimate.

Noun

• (US) IPA^(key): /ˈɡɛs.tə.mət/, [ˈɡɛs.tɪ̈.mɪ̈ʔ(t̚)]

• Audio (Southern England):

  (file)

Verb

• (US) IPA^(key): /ˈɡɛs.təˌmeɪt/, [ˈɡɛs.tɪ̈ˌmeɪ̯ʔ(t̚)]

• Audio (Southern England):

  (file)

guesstimate (plural guesstimates)

1. (informal) An estimate that is hardly any better than a guess, often because it is based on insufficient or unreliable data.

   Hyponym: SWAG

   Near-synonym: educated guess

   I'm not sure how many people were at the festival. My best guesstimate is 50,000.

• guesswork

guesstimate (third-person singular simple present guesstimates, present participle guesstimating, simple past and past participle guesstimated)

1. (intransitive) To make a guesstimate.
2. (transitive) To make a guesstimate of a specific quantity.

• guestimates