sentence worded or expressed so as to elicit information. To have or express concerns or uncertainty.

Maintenance of machinery so it runs well, e.g. car. To help or do work for someone, e.g. in a store.

Explanation of how something works (e.g. product).

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. greet someone arriving in polite or friendly way.

person who speaks. People who makes a speech before a group.

To make someone known to another by name.

Used in advertising.

on condition or understanding that. To offer or give something that is wanted, needed.

Touching or feeling something. state of touching. communicate with.

before or by now or time in question.

actual application or use of idea. perform activity repeatedly to improve or maintain proficiency.

verbal written or recorded communication. To communicate using text.

the principal method of human communication, consisting of words used in a structured and conventional way and conveyed by speech, writing, or gesture.

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

raised surface for standing on. Areas from which you board a train at a station.