cel·e·brate 
(sĕlə-brāt′)
(sĕlə-brāt′)v. cel·e·brat·ed, cel·e·brat·ing, cel·e·brates
v.tr.
1. To observe (a day or event) with ceremonies of respect, festivity, or rejoicing. See Synonyms at observe.
2. To perform (a religious ceremony): celebrate Mass.
3. To extol or praise: a sonnet that celebrates love.
4. To make widely known; display: "a determination on the author's part to celebrate ... the offenses of another" (William H. Pritchard).
v.intr.
1. To observe an occasion with appropriate ceremony or festivity.
2. To perform a religious ceremony.
3. To engage in festivities: went out and celebrated after the victory.
[Middle English celebraten, from Latin celebrāre, celebrāt-, to frequent, celebrate, from celeber, celebr-, frequented, famous.]
cel′e·bration n.
cele·bra′tor n.
cele·bra·to′ry (sĕlə-brə-tôr′ē, sə-lĕbrə-) adj.