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• ha
  ha

  interjection

  (used as an exclamation of surprise, interrogation, suspicion, triumph, etc.)
• ḥā
  ḥā

  noun

  the sixth letter of the Arabic alphabet, representing a pharyngeal spirant consonant.
• hā
  hā

  noun

  the 26th letter of the Arabic alphabet, representing a glottal spirant consonant sound.
• Ha
  Ha

  hahnium.
• h.a.
  h.a.

  abbreviation

  high angle.

ha

¹ American  

[hah] / hɑ /

Or hah

interjection

1. (used as an exclamation of surprise, interrogation, suspicion, triumph, etc.)

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ha ² American  

abbreviation

1. hectare; hectares.

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ḥā ³ American  

[khah] / xɑ /

noun

1. the sixth letter of the Arabic alphabet, representing a pharyngeal spirant consonant.

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hā ⁴ American  

[hah] / hɑ /

noun

1. the 26th letter of the Arabic alphabet, representing a glottal spirant consonant sound.

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Ha ⁵ American  

Symbol, Chemistry, Physics.

1. hahnium.

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h.a. ⁶ American  

abbreviation

1. Gunnery. high angle.

2. in this year.

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ha ¹ British  

/ hɑː /

interjection

1. an exclamation expressing derision, triumph, surprise, etc, according to the intonation of the speaker

2. (reiterated) a representation of the sound of laughter

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Ha ² British  

abbreviation

1. Hawaii

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ha ³ British  

symbol

1. hectare

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h.a. ⁴ British  

abbreviation

1. hoc anno

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Etymology

Origin of ha¹

Middle English word dating back to 1250–1300; see origin at ha-ha ¹

Origin of ḥā³

From Arabic

Origin of hā⁴

From Arabic

Origin of h.a.⁶

h.a. ( def. 2 ) < Latin hōc annō

Example Sentences

"We analyzed the star for a large swath of elements, and the abundances are quite low for all of them," said Ha Do, another student on the team.

From Science Daily • Apr. 4, 2026

“Major airports are experiencing days where 40% to 50% of their staff are calling out,” Ha Nguyen McNeill, acting head of TSA, testified Wednesday.

From The Wall Street Journal • Mar. 26, 2026

With viewers set to find out if the pair's simmering forbidden love can conquer all, Australian actress Yerin Ha, who plays Sophie, tells Newsbeat that representing her community is all she's "ever wanted".

From BBC • Feb. 26, 2026

Her challengers are publicist Dory Frank; Ashkan “Alex’’ Nazarian, co-founder of AAA Diamond and Jewelry; city employee Peter Gerard Kearns; real estate professional Eddie Ha; tenant rights attorney Henry Mantel; and small-business accountant Morgan Oyler.

From Los Angeles Times • Feb. 8, 2026

I shoveled a spoon full of cereal into my mouth as Dad breathed hard in the place of saying, Ha!

From "Where Things Come Back" by John Corey Whaley