General words:
* Ocean: Great for poems about nature, vastness, or dreams
* Open: Suggests freedom, possibility, or honesty
* Opportunity: For poems about chance, ambition, or new beginnings
* Optimistic: For poems about hope, positivity, or a bright future
* Overjoyed: To express happiness, excitement, or love
* Observe: To highlight attention to detail, noticing, or learning
* Obey: For poems about following rules, respect, or discipline
* Onward: Suggests movement, progress, or determination
* Often: For poems about repetition, habits, or frequency
* Outreach: For poems about helping others, community, or connection
More specific words:
* Orange: For poems about color, fruit, or autumn
* Orbit: For poems about space, movement, or cycles
* Outlandish: For poems about the unusual, eccentric, or humorous
* Owl: For poems about wisdom, nocturnal creatures, or symbolism
* Oasis: For poems about rest, respite, or hope
* Olive: For poems about peace, ancient times, or olive trees
You can also choose a word that is relevant to the theme of your poem, or that has personal meaning to you.
For example:
If your poem is about love, you could use:
* Obsessed
* Overwhelmed
* Only
The most important thing is to choose a word that fits the overall tone and message of your poem.