接吻 is read as せっぷん (seppun) and means kiss.
せっぷん
seppun
せっきん
becoming close (i.e. friendly)
せったい
entertainment (of guests; esp. in the corporate world)
せつぞく
changing trains
せっする
to be tangent to
せっしょく
touch
せっせん
close combat
せってん
contact (electrical, etc.)
せっけん
meeting with one's lawyer (while detained or imprisoned)
せっしゅ
inoculation
せっちゃく
adhesion
せっきゃく
serving customers
せっしゅう
requisition