What is the origin of the word "algorithm"?
Algorithm
Constant time: if the time needed by the algorithm is the same, regardless of the input size. E.g. an access to an array element.
Linear time: if the time is proportional to the input size. E.g. the traverse of a list.
Logarithmic time: if the time is a logarithmic function of the input size. E.g. binary search algorithm.
Polynomial time: if the time is a power of the input size. E.g. the bubble sort algorithm has quadratic time complexity.
Exponential time: if the time is an exponential function of the input size. E.g. Brute-force search.