深く認識してませんでしたがaboardって乗ってって意味なんですねー
welcome aboard
〔入社・搭乗してきた人に〕ようこそ、ご乗車［乗船・搭乗］ありがとうございます
used to welcome passengers or a person joining a new organization, etc.
：Welcome aboard American airlines flight 176, nonstop to New York.(英)
：Welcome aboard flight BA345 to Tokyo.(C)
●BBC：4 July 2010
US Gen Petraeus urges unity to tackle Afghanistan war
'Welcome aboard'
US Ambassador to Afghanistan Karl Eikenberry welcomed Gen Petraeus at the embassy gathering, saying: "Welcome aboard. You are welcome at this embassy 24-7."
aboard
【adverb】
〔乗り物に〕乗って
on or onto a ship, plane, or train
：The plane crashed, killing all 200 people aboard.(L)
：The boat swayed as he stepped aboard.(L)
：We went aboard.(O)
：He was already aboard the plane.(O)
：The flight attendant welcomed us aboard.(C)
：All aboard! (= the bus, boat, etc. is leaving soon)(O)
："All aboard!" "Wait a second, we are coming."(英)
●BBC：18 January 2013
US Navy ship aground on Philippine Unesco coral reef
A small complement of engineering and bridge personnel will remain aboard and work with a US Navy team in an attempt to free Guardian with minimal environmental impact, it said.
●BBC：21 May 2012
Lockerbie bomber Abdelbaset al-Megrahi's funeral held
All 259 people aboard the plane, which was travelling from London to New York, were killed, along with 11 others on the ground.
welcome aboard
〔入社・搭乗してきた人に〕ようこそ、ご乗車［乗船・搭乗］ありがとうございます
used to welcome passengers or a person joining a new organization, etc.
：Welcome aboard American airlines flight 176, nonstop to New York.(英)
：Welcome aboard flight BA345 to Tokyo.(C)
●BBC：4 July 2010
US Gen Petraeus urges unity to tackle Afghanistan war
'Welcome aboard'
US Ambassador to Afghanistan Karl Eikenberry welcomed Gen Petraeus at the embassy gathering, saying: "Welcome aboard. You are welcome at this embassy 24-7."
aboard
【adverb】
〔乗り物に〕乗って
on or onto a ship, plane, or train
：The plane crashed, killing all 200 people aboard.(L)
：The boat swayed as he stepped aboard.(L)
：We went aboard.(O)
：He was already aboard the plane.(O)
：The flight attendant welcomed us aboard.(C)
：All aboard! (= the bus, boat, etc. is leaving soon)(O)
："All aboard!" "Wait a second, we are coming."(英)
●BBC：18 January 2013
US Navy ship aground on Philippine Unesco coral reef
A small complement of engineering and bridge personnel will remain aboard and work with a US Navy team in an attempt to free Guardian with minimal environmental impact, it said.
●BBC：21 May 2012
Lockerbie bomber Abdelbaset al-Megrahi's funeral held
All 259 people aboard the plane, which was travelling from London to New York, were killed, along with 11 others on the ground.