كـ

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Level 2

The prefix كـ (ka-) is a formal way to express similarity ('like') or capacity ('as'). It is a preposition that physically attaches to the noun it modifies.

How It Works

The particle كـ is one of the 'connected' prepositions in Arabic, meaning it cannot stand alone and must be prefixed to a noun or a demonstrative.

1. Grammatical Effect:
Like all prepositions, it changes the ending of the following noun to the genitive case. For a singular noun, this usually means a kasra (ـِ) or tanwīn kasr (ـٍ).

2. Attachment to the Definite Article:
When كـ attaches to a noun starting with the definite article (al-), the alif of the article remains written but is silent. The كـ connects directly to the lām, as in كالبرق (ka-l-barq - 'like lightning').

3. Usage for Capacity:
In Modern Standard Arabic, كـ is frequently used to mean 'in the capacity of' or 'in the role of' (e.g., 'He spoke as a leader'). While some traditionalists prefer other constructions for this, it is standard in modern media.

4. Important Restriction:
You cannot attach كـ to personal pronouns (like 'like him' or 'like you'). For pronouns, you must use the word مثل (mithla) instead.

Examples (4)

  1. هو شجاع كالأسد.

    He is brave like the lion.

    Word by Word: He brave like-the-lion.

    Here, the prefix attaches to a definite noun to show resemblance.

  2. البنت جميلة كالقمر.

    The girl is beautiful like the moon.

    Word by Word: The-girl beautiful like-the-moon.

    A classic poetic comparison using the connected preposition.

  3. يعمل كمدير في الشركة.

    He works as a manager in the company.

    Word by Word: He-works as-manager in the-company.

    This demonstrates the 'capacity' usage common in Modern Standard Arabic.

  4. ليس هناك شيء كالصحة.

    There is nothing like health.

    Word by Word: Not there thing like-the-health.

    Used here to express that nothing compares to the value of health.

Common Mistakes

  • Attaching the prefix directly to a personal pronoun.

    هو كـهو
    هو مثله

    The preposition كـ cannot take pronoun suffixes. Use the noun 'mithla' (like/similar to) when comparing with a pronoun.

  • Using the nominative case after the preposition.

    كـالأسدُ
    كـالأسدِ

    Because كـ is a preposition, the following noun must be in the genitive case (majrūr).

How It Connects

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كـLevel 2Like

Learn This First

To understand the comparison particle كـ, you need to know that it acts like a preposition, which changes the ending of the noun it attaches to. You should also be comfortable with the definite article 'Al-', as it is frequently used in these comparisons.

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