level vs smooth

level

adj
  • Calm. 

  • In the same position or rank. 

  • Perpendicular to a gravitational force. 

  • Unvaried in volume. 

  • Of even tone; without rising or falling inflection; monotonic. 

  • Unvaried in frequency. 

  • Well balanced; even; just; steady; impartial. 

  • The same height at all places; parallel to a flat ground. 

  • At the same height as some reference; constructed as level with. 

  • Straightforward; direct; clear. 

noun
  • A floor of a multi-storey building. 

  • A school grade or year. 

  • Distance from the root node of a tree structure. 

  • Degree or amount. 

  • A numeric value that quantifies a character, ability, or item's experience and power. 

  • An area of almost perfectly flat land. 

  • One of the specific values which may be taken by a categorical variable. 

  • Achievement or qualification. 

  • A distance relative to a given reference elevation. 

  • A tool for finding whether a surface is level, or for creating a horizontal or vertical line of reference. 

  • One of several discrete segments of a game, generally increasing in difficulty and representing different locations in the game world. 

verb
  • To direct or impose (a penalty, fine, etc) at or upon (someone). 

  • To make the score of a game equal. 

  • To bring to a common level or plane, in respect of rank, condition, character, privilege, etc. 

  • To adjust or adapt to a certain level. 

  • To speak honestly and openly with. 

  • To adjust so as to make as flat or perpendicular to the ground as possible. 

  • To progress to the next level. 

  • To aim or direct (a weapon, a stare, an accusation, etc). 

  • To destroy by reducing to ground level; to raze. 

smooth

adj
  • Placid, calm. 

  • Having derivatives of all finite orders at all points within the function’s domain. 

  • Flowing or uttered without check, obstruction, or hesitation; not harsh; fluent. 

  • Natural; unconstrained. 

  • Not grainy; having an even texture. 

  • Without difficulty, problems, or unexpected consequences or incidents. 

  • Involuntary and non-striated. 

  • That factors completely into small prime numbers. 

  • Having a texture that lacks friction. Not rough. 

  • Unbroken. 

  • Lacking marked aspiration. 

  • Lacking projections or indentations; not serrated. 

  • Having a pleasantly rounded flavor; neither rough nor astringent. 

  • Suave; sophisticated. 

  • Bland; glib. 

noun
  • The analysis obtained through a smoothing procedure. 

  • Something that is smooth, or that goes smoothly and easily. 

  • A domestic animal having a smooth coat. 

  • A member of an anti-hippie fashion movement in 1970s Britain. 

  • A smoothing action. 

adv
  • Smoothly. 

verb
  • To make smooth or even. 

  • To make straightforward or easy. 

  • To stroke; especially to stroke an animal's fur. 

  • To reduce to a particular shape or form by pressure; to press, to flatten. 

  • To calm or palliate. 

  • To capture important patterns in the data, while leaving out noise. 

How often have the words level and smooth occurred in a corpus of books? (source: Google Ngram Viewer )