Cos·tel·lo 
(kŏs-tĕlō), John Aloysius 1891-1976.
(kŏs-tĕlō), John Aloysius 1891-1976. Irish prime minister (1948-1951 and 1954-1957) who took Ireland out of the Commonwealth of Nations (1949).
- longshoreman
- long shot
- long-sighted
- long-sightedly
- long-sightedness
- longsome
- Longs Peak
- longspur
- long-standing
- longstanding
- Longstreet
- long-suffering
- long-sufferingly
- long suit
- long-tailed duck
- long-term
- long-term potentiation
- longtime
- long ton
- Longueuil
- longueur
- Longview
- long-waisted
- long wave
- long-winded