Meaning: 'Tactile' means related to the sense of touch, indicating that a person who is blind may dream of sensations they can feel rather than see.

Wrong options:

• volatile: Volatile means likely to change rapidly and unpredictably, which does not fit the context of stable sensory experiences in dreams.
• versatile: Versatile refers to the ability to adapt or be adapted for many different functions, which is not relevant to the specific sensory information in dreams.
• fertile: Fertile typically relates to the ability to produce abundant vegetation or offspring, and does not apply to the context of sensory experiences in dreams.

Correct answer: comparable

Explanation: The word 'comparable' indicates that the vision in dreams can be likened to the range of vision experienced in real life. This fits grammatically and contextually, as it suggests a relationship between the two types of vision.

Meaning: 'Comparable' means able to be likened to another; in this case, it suggests that the quality of vision in dreams reflects the person's actual visual experiences.

Wrong options:

• interchangeable: Interchangeable implies that two things can be swapped without loss of meaning, which does not accurately describe the relationship between dream vision and real vision.
• incomparable: Incomparable means not able to be compared, which contradicts the idea that dream vision can relate to past visual experiences.
• imperturbable: Imperturbable means unable to be upset or excited, which is irrelevant to the context of comparing dream vision to actual vision.

Correct answer: acuity

Explanation: The word 'acuity' refers to sharpness or clarity of vision, which is relevant in the context of how well a person perceives images in their dreams. It fits grammatically and contextually, as it describes the quality of vision in dreams.

Meaning: 'Acuity' means sharpness or keenness, particularly in relation to vision, indicating how clearly a person can see in their dreams based on their visual history.

Wrong options:

• agility: Agility refers to the ability to move quickly and easily, which does not relate to the clarity of vision in dreams.
• compatibility: Compatibility means the ability to exist or work together without conflict, which is not relevant to the context of visual clarity in dreams.
• tenuity: Tenuity refers to thinness or lack of substance, which does not apply to the concept of visual clarity.

Correct answer: incorporate

Explanation: The word 'incorporate' means to include or integrate something as part of a whole. It fits grammatically and contextually, as it describes how a person may blend their experiences of light and color into their dreams.

Meaning: 'Incorporate' means to take in or include something as part of a larger whole, indicating that these visual experiences are added to the person's dream life.

Wrong options:

• institute: Institute means to establish or set up, which does not fit the context of adding experiences to dreams.
• insure: Insure means to protect against risk, which is irrelevant to the context of dreaming and sensory experiences.
• inhabit: Inhabit means to live in or occupy a space, which does not relate to the act of including experiences in dreams.