Group with the 2012 chart-topping album "Up All Night," to fans

• Superficial, for short
• Lacking height and depth
• Like a line segment, briefly
• Like a line, in math
• Lacking height or depth, for short
• Without width or depth
• Joined together
• Linear, briefly
• Like a line, to a math student

Wiktionary Word definitions in Wiktionary
vb. (en-past of: one )