1 [no object] (capitalize on) take the chance to gain advantage from:an attempt by the opposition to capitalize on the government’s embarrassment
2 [with object] provide (a company) with capital: (as adjective capitalized)a highly capitalized industry
3 [with object] realize (the present value of an income); convert into capital:people should have the right to capitalize part of the value of these benefits
reckon (the value of an asset) by setting future benefits against the cost of maintenance:a trader will want to capitalize repairs expenditure
4 [with object] write or print (a word or letter) in capital letters:the letter M, either capitalized or in lower case, is the abbreviation for mili-
begin (a word) with a capital letter.
capitalize in other Oxford dictionaries
Definition of capitalize in the US English dictionary