Capitalize \Cap"i*tal*ize\, v. t. [imp. & p. p. {Capitalized}; p. pr. & vb. n. {Capitalizing}.] 1. To convert into capital, or to use as capital. 2. To compute, appraise, or assess the capital value of (a patent right, an annuity, etc.) 3. To print in capital letters, or with an initial capital.