حج doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 4 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• حَجَّ Form 1

  1 حَجَّ حج , aor. حَجُجَ , (S, A, Mgh, Msb,) inf. n. حَجٌّ, (S, Mgh, Msb, K,) He repaired, or betook himself, to, or towards, syn. قَصَدَ, (S, A, Mgh, Msb, K,) a person (S, A, Mgh) [or place], in an absolute sense: or to…

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• حَجُّ

  حَجُّ حج and , the former an inf. n., and the latter a simple subst., (S, Msb, K,) or the latter also is an inf. n., (Sb, L,) [both used as substs.,] The pilgrimage to Mekkeh, (S, K,) or to the Kaabeh, (Msb,) to perform …

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• حِجُّ

  حِجُّ حج : see حَجُّ, in two places: -b2- and see also حَاجٌّ.…

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• حَجٍ

  حَجٍ حج : see حَجِىٌّ. -A2- إِنَّهُ لَحَجِىٌ إِلَى بَنِى فُلَانٍ means لَا جِئٌ لَهُمْ [i. e. Verily he is betaking himself for refuge, or protection, to the sons of such a one; like لَحَجِئٌ: but by rule it should be لَ…

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