The verb LOOK
Foundation'Look' plus a particle almost never means 'to see'. Treat the whole unit as a new verb.
'Look up' and 'look up to' differ by one word: one is a dictionary, the other is admiration. Both are offered in the same question.
| Phrasal verb | Means |
|---|---|
| Look after | Take care of |
| Look for | Search for |
| Look into | Investigate |
| Look up | Consult a reference; or improve |
| Look up to | Admire |
| Look down on | Regard as inferior |
| Look forward to | Await with pleasure |
| Look over | Examine quickly |