Enquire - English editing.

Usage guides have traditionally drawn a distinction between enquire and inquire, suggesting that, in British English at least, enquire is used for general meanings of ‘to ask’, while inquire is reserved for uses meaning ‘to make a formal investigation’. In practice, however, there is little difference in the way the two words are used, although enquire and enquiry are more common in British English while inquire and inquiry are more common in US English.
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