adverb
1
BAD : The poor bus service makes it difficult to get somewhere.
GOOD : The poor bus service makes it difficult to get anywhere.
2
BAD : Let's go to somewhere different for a change.
GOOD : Let's go somewhere different for a change.
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The prepositions in, at, and to are usually omitted in front of somewhere/anywhere. 'He wants you to give him a lift somewhere.'
Compare: 'He wants you to give him a lift to the station.'