# ceil
## English
### Pronunciation

* IPA: /siːl/
** Audio (Southern England):(file)
* Rhymes: -iːl
* Homophones: SEAL, seal

### Etymology 1

Uncertain; perhaps related to Latin cēlō (“to hide”).

#### Alternative forms

* ciel

#### Verb

ceil (third-person singular simple present ceils, present participle ceiling, simple past and past participle ceiled)
* (transitive) To line or finish (a surface, such as a wall), with plaster, stucco, thin boards, or similar.
** 1903 June 1, W[illiam] E[dward] Burghardt Du Bois, “Of the Quest of the Golden Fleece”, in The Souls of Black Folk: Essays and Sketches, 2nd edition, Chicago, Ill.: A[lexander] C[aldwell] McClurg & Co., →OCLC, page 139:It is nearly always old and bare, built of rough boards, and neither plastered nor ceiled.

##### Derived terms

* ceiler
* ceiling

### Etymology 2

Abbrevation of ceiling, influenced by French ciel

#### Noun

ceil (plural ceils)
* (poetic) A ceiling.
** 1890, Ambrose E. Pratt, Two Hundred and Fiftieth Anniversary Celebration of Sandwich and Bourne, at Sandwich, Massachusetts, September 3, 1889, page 89:[…] The mossy sward / Beneath their feet, their carpet was, / An azure ceil, the sky above; […]
* (mathematics) Abbreviation of ceiling.

##### Derived terms

* ceil function

##### Translations
#### Verb

ceil (third-person singular simple present ceils, present participle ceiling, simple past and past participle ceiled)
* (mathematics) To set a higher bound.

### Anagrams

* -icle, Celi, ICLE, ILEC, Icel., ciel, lice

## Irish
### Etymology

From Old Irish ceilid, from Proto-Celtic *keleti, from Proto-Indo-European *ḱel-; compare Welsh celu, Latin cēlō, Old English helan.

### Pronunciation

* IPA: /cɛlʲ/

### Verb

ceil (present analytic ceileann, future analytic ceilfidh, verbal noun ceilt, past participle ceilte)(transitive)
* to hide, conceal
    Synonym: folaigh
* to cover up, disguise

#### Conjugation

| | | singular | singular | singular | plural | plural | plural | relative | autonomous |
| | | first | second | third | first | second | third | relative | autonomous |
| indicative | present | ceilim | ceileann tú; ceilir$^†$ | ceileann sé, sí | ceilimid | ceileann sibh | ceileann siad; ceilid$^†$ | a cheileann; a cheileas / a gceileann* | ceiltear |
| indicative | past | cheil mé; cheileas | cheil tú; cheilis | cheil sé, sí | cheileamar; cheil muid | cheil sibh; cheileabhair | cheil siad; cheileadar | a cheil / ar cheil* | ceileadh |
| indicative | past habitual | cheilinn / gceilinn‡‡ | cheilteá / gceilteá‡‡ | cheileadh sé, sí / gceileadh sé, sí‡‡ | cheilimis; cheileadh muid / gceilimis‡‡; gceileadh muid‡‡ | cheileadh sibh / gceileadh sibh‡‡ | cheilidís; cheileadh siad / gceilidís‡‡; gceileadh siad‡‡ | a cheileadh / a gceileadh* | cheiltí / gceiltí‡‡ |
| future | future | ceilfidh mé; ceilfead | ceilfidh tú; ceilfir$^†$ | ceilfidh sé, sí | ceilfimid; ceilfidh muid | ceilfidh sibh | ceilfidh siad; ceilfid$^†$ | a cheilfidh; a cheilfeas / a gceilfidh* | ceilfear |
| conditional | conditional | cheilfinn / gceilfinn‡‡ | cheilfeá / gceilfeá‡‡ | cheilfeadh sé, sí / gceilfeadh sé, sí‡‡ | cheilfimis; cheilfeadh muid / gceilfimis‡‡; gceilfeadh muid‡‡ | cheilfeadh sibh / gceilfeadh sibh‡‡ | cheilfidís; cheilfeadh siad / gceilfidís‡‡; gceilfeadh siad‡‡ | a cheilfeadh / a gceilfeadh* | cheilfí / gceilfí‡‡ |
| subjunctive | present | go gceile mé; go gceilead$^†$ | go gceile tú; go gceilir$^†$ | go gceile sé, sí | go gceilimid; go gceile muid | go gceile sibh | go gceile siad; go gceilid$^†$ | — | go gceiltear |
| subjunctive | past | dá gceilinn | dá gceilteá | dá gceileadh sé, sí | dá gceilimis; dá gceileadh muid | dá gceileadh sibh | dá gceilidís; dá gceileadh siad | — | dá gceiltí |
| imperative | imperative | ceilim | ceil | ceileadh sé, sí | ceilimis | ceiligí; ceilidh$^†$ | ceilidís | — | ceiltear |
| verbal noun | verbal noun | ceilt | ceilt | ceilt | ceilt | ceilt | ceilt | ceilt | ceilt |
| past participle | past participle | ceilte | ceilte | ceilte | ceilte | ceilte | ceilte | ceilte | ceilte |
* indirect relative † archaic or dialect form ‡‡ dependent form used with particles that trigger eclipsis

#### Related terms

* ceilteach (“secretive”, adjective)