խոսք

In a sentence

• Ես տվեցի նրան խոսք, որ կօգնեմ։

  I gave him a promise that I will help.

  Here, 'խոսք' (khosq) means 'promise' indicating a given word or assurance.

• Նրա խոսքերն ինձ համոզեցին։

  His words convinced me.

  In this context, 'խոսքեր' (khosqer) is the plural form of 'խոսք', meaning 'words' as units of speech.

• Խոսքերով միշտ չէ որ գործ է լինում։

  Words are not always followed by actions.

  Here, 'խոսքեր' (khosqer) again represents 'words', but in an abstract sense referring to speech in general.