参照【さんしょう】
reference (e.g. to a dictionary, passage, footnotes), consultation, comparison, browsing (to a file or folder)
照明【しょうめい】
illumination, lighting
対照【たいしょう】
contrast, antithesis, comparison
照会【しょうかい】
inquiry, enquiry, query, reference
照合【しょうごう】
collation, comparison
照る【てる】
to shine, to look slightly upward (of a noh mask; indicating joy, etc.)
照らす【てらす】
to shine on, to illuminate, to compare (with), to refer to