Final answer:
The word "attachable" means capable of being attached, stemming from the verb 'attach' with the suffix '-able' indicating ability or possibility.
Step-by-step explanation:
The term "attachable" refers to something that can be attached or joined to another item. In the context of a word family, it's built from the base verb attach, which means to fasten or connect. When the suffix -able is added, it modifies the word to describe a characteristic of being capable of having something attached.
Just as the concept of a "parent" has evolved to include a variety of socially recognized caregivers beyond biological connections, words like "attachable" convey an expanded meaning from their root words. The suffix -able implies the ability or possibility, and denotes an attribute of the noun or verb it's attached to. Therefore, in the sentence, "attachable" means capable of being attached.