
1) Dear me 2) I fear 3) Regrettably 4) So sad 5) Unfortunately 6) Unluckily
Found on
https://www.crosswordclues.com/clue/alas

1) French word used in English
Found on
https://www.crosswordclues.com/clue/alas
[missile] ALAS (Advanced Light Attack System, АЛАС) is a new Serbian long-range multipurpose guided missile system developed by the private company EdePro which will work under the direction of Yugoimport SDPR. The new system was developed for attacks on tanks, armored fighting vehicles, fortifications, command posts, low-flying helicop...
Found on
http://en.wikipedia.org/wiki/ALAS_(missile)
[geography] Alas (Алаас) is a shallow depression which occurs primarily in Yakutia, which is formed by subsidence of the Arctic permafrost due to repeated melting and refreezing. An alas first develops as a shallow lake as melt water fills the depression. The lake eventually dries out and is replaced by grasses and other herbaceous veg...
Found on
http://en.wikipedia.org/wiki/Alas_(geography)

• (interj.) An exclamation expressive of sorrow, pity, or apprehension of evil; -- in old writers, sometimes followed by day or white; alas the day, like alack a day, or alas the white.
Found on
http://thinkexist.com/dictionary/meaning/alas/

Aluminium Arsenide Molar mass: 101.903138
Found on
http://www.convertunits.com/molarmass/Aluminium+Arsenide
A·las' interj. [ Middle English
alas ,
allas , Old French
alas , French
hélas ;
a interj. (L.
ah .) +
las wretched (that I am), Latin
lassus weary, akin to English
late . See
Late .] An exclamation expressive of sorrow, pity, ...
Found on
http://www.encyclo.co.uk/webster/A/50

(used as an exclamation to express sorrow, grief, pity, concern, or apprehension of evil.)
Found on
https://www.infoplease.com/dictionary/alas
No exact match found.