Por ahora tenemos bastante comida. - We have enough food for the present.
Analysis
por
1. prep. by (indicates the creator of a work)
La novela Cien años de soledad fue escrita por Gabriel García Márquez. - The novel One Hundred Years of Solitude was written by Gabriel García Márquez.
2. prep. for (indicates something given in an exchange)
Lo compré por cincuenta euros. - I bought this for fifty euros.
3. prep. through, out, via (indicating movement)
ahora
1. adv. now (at the present time)
2. adv. just now, just a moment ago (in the past)
3. adv. very soon, in a moment (in the future)
4. adv. (usually preceded by de) of nowadays, of today, latter-day
La juventud de ahora entiende esto y más. - Today's youth understands this and more.
