o·pen (adult definition, taken from Google)

adjective

1. allowing access, passage, or a view through an empty space; not closed or blocked up.

"it was a warm evening and the window was open"

synonyms: not shut,not closed,unlocked,unbolted,unlatched,off the latch,unfastened,unsecured

2. exposed to the air or to view; not covered.

"an open fire burned in the grate"

verb

1. move or adjust (a door or window) so as to leave a space allowing access and view.

"she opened the door and went in"

synonyms: unfasten,unlatch,unlock,unbolt,unbar

2. unfold or be unfolded; spread out.

"the eagle opened its wings and circled up into the air"

synonyms: spread out,unfold,unfurl,unroll,straighten out

o·pen (toddler definition taken from our child, combined with "ah" to form "ah open (I want open)")

adjective

1. allowing access, passage, or a view through an empty space; not closed or blocked up.

"Ah open (Please move this chair so I can crawl under the table and try to play with that electrical outlet)."

"Ah open (You just sat next to me on the couch, but I don't want you there and I plan on rolling that way eventually, so find somewhere else to sit)."

"Ah open (I realize that you don't want me in your bedroom, but let me pass so I can get in your dresser and pull out more of your socks and underwear to leave around the house)."

2.exposed to the air or to view; not covered.

"Ah open (Thanks, but I'd rather not dry off after that bath and just run around the house naked as the day I was born)."

"Ah open (I don't care if other people are staring, because someone needs to know the outrage I feel after you took (x) away from me)."

"Ah open (I'm not wearing those gloves, no matter how cold out it is. And you can be damn sure I'm going to point in your direction when people look at my cold, red fingers and wonder why I'm not wearing any)."

verb

1. move or adjust (a door or window) so as to leave a space allowing access and view.

"Ah open (My favorite television program is about to start and I would like to watch it, whether you want me to or not)."

"Ah open (You just drew a puppy and a kitty on the Magna Doodle for the third time, but now you must erase them and draw them all over again until they're done right. Once that's done, show me Paint Fence and Sand Floor)."

"Ah open (Put the tray on my highchair so I can fake enjoying another pasta dish you've cooked up, because you still think I like it)."

"Ah open (You're wrong, that's not the last page of the book. I know for a fact there's at least a car chase sequence and multiple explosions at the end of this Dora adventure, so let's get to the good stuff)."

2. unfold or be unfolded; spread out.

"Ah open (I destroyed my diaper, and I need you to go in and clean up the mess I just left)."

"Ah open (I don't like the clothes you've put on me. Let's try to find an outfit that the other kids at daycare won't make fun of)."

"Ah open (Did you not want Cheerios all over the carpet? That's ok, you needed to vacuum anyway)."