Final answer:
The term "similitude" in the passage refers to physical resemblance between the deceased and the narrator's acquaintance.
Step-by-step explanation:
The term "similitude" in the passage most likely means physical resemblance. The narrator describes a striking resemblance between the deceased and their twin, suggesting that they looked very similar. This suggests that "similitude" refers to a similarity or likeness in appearance.
The use of the term also implies that the physical resemblance between the brother and sister is significant and noteworthy. The narrator's attention is arrested by this resemblance and it is stated that there had always been "sympathies of a scarcely intelligible nature" between them, further emphasizing the strength of their physical resemblance.
Overall, in the context of the passage, "similitude" primarily refers to the physical resemblance between the deceased and the narrator's acquaintance.
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