謹んで[tsutsushinde] respectfully
謹賀新年[kingashinnen] Happy New Year!
謹啓[kinkei] Dear Sir or Madam
謹言[kingen] Yours Sincerely ...
謹慎[kinshin] penitence

謹製[kinsei] quality product
謹聴[kinchou] listening attentively
謹呈[kintei] humbly presenting
重謹慎[juukinshin] close confinement (in one's barracks)
謹み[tsutsushimi] modesty