1. as (i.e. in the role of), for (i.e. from the viewpoint of)
2. apart from... (used to change the topic)
3. even (e.g. "not even a single person")
4. thinking that..., trying to...
1. to use (a tool, method, etc.), to make use of, to put to use
2. to use (a person, animal, puppet, etc.), to employ, to handle, to manage, to manipulate
3. to use (time, money, etc.), to spend, to consume
4. to use (language), to speak