記 diary

Saying things to yourself honestly is the KEY to a successful diary.

record ★★★☆☆
記 (diary) + 録 (record) = 記録 (record)

a record (like the minutes of a meeting or a log-file), but also a record like Guiness' Book. To break a record, like your Moms did at the Special Olympics, is 記録を破る　（きろくをやぶる）.

diary ★★★☆☆
日 (sun, day) + 記 (diary) = 日記 (diary)

reporter ★★☆☆☆
記 (diary) + 者 (professional) = 記者 (reporter)

reporter

memorial ★☆☆☆☆
記 (diary) + 念 (concern) = 記念 (memorial)

a memorial, an anniversary of something good , like marriage or a band's anniversary gig. Or something you give your friend to remember you by.