| kindness /ˈkaɪndnəs/ | being friendly and caring (kind → kindness) | Thank you for your kindness. |
| excitement /ɪkˈsaɪtmənt/ | the feeling of being excited (excite → excitement) | The children couldn't hide their excitement. |
| noisy /ˈnɔɪzi/ | making a lot of noise (noise → noisy) | The café was too noisy to talk. |
| competition /ˌkɒmpəˈtɪʃn/ | noun from compete | He won first prize in a photography competition. (compete) |
| successful /səkˈsesfl/ | adjective from success | The concert was very successful — all the tickets sold out. (success) |
| famous /ˈfeɪməs/ | known by many people (fame → famous) | She wants to be a famous singer. |
| carefully /ˈkeəfəli/ | adverb from careful | Please drive carefully — the roads are icy. (careful) |
| invitation /ˌɪnvɪˈteɪʃn/ | noun from invite | I got an invitation to Sara's birthday party. (invite) |
| useful /ˈjuːsfl/ | adjective from use | This app is really useful for learning words. (use) |
| unhappy /ʌnˈhæpi/ | opposite of happy, with the prefix un- | He looked unhappy after his team lost. (happy, opposite) |